High Altitude Brownie Bars with Rich Ganache and Buttery Shortbread

Why You’ll Love This Brownie Shortbread Bars Ganache

These incredible Brownie Shortbread Bars Ganache represent the perfect marriage of textures and flavors that will satisfy even the most intense chocolate cravings. The combination of buttery shortbread, rich fudgy brownie, and silky smooth ganache creates a dessert experience that’s truly unforgettable.

What makes this recipe special is its thoughtful design for different environments, including high altitudes. These brownie bars have been tested at elevations up to 5,280 feet and work without any adjustments, thanks to the absence of leavening agents that typically cause issues at higher elevations. This means you can achieve consistently perfect results whether you’re baking in Denver or at sea level.

“This rich, fudgy brownie recipe comes together quickly and stays moist for days, making it perfect for baking ahead and sharing with friends or family.”

The prep time is just 30 minutes, with only 40 minutes of active cooking time, making these bars accessible for both novice bakers and experienced culinarians. Despite their sophisticated appearance and complex flavor profile, they’re surprisingly straightforward to create. The optional instant espresso powder in the brownie layer might seem like a small addition, but it significantly enhances the chocolate flavor, creating a deeper, more complex taste that chocolate enthusiasts will appreciate.

If you enjoy baking decadent desserts like these, you might also want to check out our apple spice crumb muffins for another crowd-pleasing treat that balances sweetness with warm spices.

Essential Ingredients for Brownie Shortbread Bars Ganache

The beauty of these Brownie Shortbread Bars Ganache lies in their simplicity. You only need basic baking ingredients to create this impressive dessert. The recipe is divided into three distinct components, each requiring different ingredients that come together to create the final masterpiece.

Shortbread Crust Ingredients

• 1 cup all-purpose flour
• 1/3 cup granulated sugar
• 1/2 teaspoon coarse kosher salt (or half if using table salt)
• 1/2 teaspoon vanilla extract
• 1/2 cup cold unsalted butter, diced

Brownie Layer Ingredients

• 1/2 cup unsalted butter
• 1 cup granulated sugar
• 1/2 cup semi-sweet chocolate chips
• 2 teaspoons vanilla extract
• 2 large eggs
• 2/3 cup unsweetened Dutch-processed cocoa powder
• 1/3 cup all-purpose flour
• 1/4 teaspoon coarse kosher salt (or half if using table salt)
• 1-2 teaspoons instant espresso powder (optional)

Ganache Ingredients

• 4 ounces good-quality dark chocolate (55-60% cacao)
• 4 ounces heavy whipping cream

Special Dietary Options

One of the wonderful aspects of this recipe is its adaptability. While the recipe as written uses traditional ingredients, it can be modified to accommodate various dietary needs:

How to Prepare the Perfect Brownie Shortbread Bars Ganache: Step-by-Step Guide

Creating these indulgent Brownie Shortbread Bars Ganache involves three main stages: preparing the shortbread crust, baking the brownie layer, and finishing with a rich ganache topping. Follow these detailed instructions to achieve perfect results every time.

Creating the Shortbread Crust

Start by preheating your oven to 350°F and lining an 8×8-inch baking dish with parchment paper. This will make lifting the bars out later much easier and ensure clean edges.

In a mixing bowl, combine 1 cup all-purpose flour, 1/3 cup granulated sugar, 1/2 teaspoon coarse kosher salt, and 1/2 teaspoon vanilla extract. Mix these dry ingredients together before cutting in the cold unsalted butter that you’ve diced into small cubes. Using a fork, pastry cutter, or food processor, work the butter into the dry ingredients until the mixture reaches a crumbly consistency similar to coarse meal.

Press the crumbly mixture firmly and evenly into the bottom of your prepared baking dish. Make sure to create compact, even layers without gaps. Bake this shortbread crust for 15 minutes or until it turns a pale golden color. Once baked, remove from the oven and reduce the temperature to 325°F for the brownie layer.

Preparing the Brownie Layer

While the shortbread crust is baking, begin preparing the brownie layer. In a saucepan over medium heat, combine 1/2 cup unsalted butter and 1 cup granulated sugar. Heat this mixture, stirring occasionally, until it begins to bubble. Once bubbling, continue cooking for exactly 2 minutes to help dissolve the sugar and create a smooth base.

“For the best flavor development, be sure to use good quality cocoa powder and chocolate. The difference is noticeable in the final result.”

Remove the saucepan from the heat and stir in 1/2 cup semi-sweet chocolate chips and 2 teaspoons vanilla extract. Continue stirring until the chocolate chips have completely melted and the mixture is smooth. This step is crucial for developing a rich chocolate flavor base.

Allow the mixture to cool for about 10 minutes. This cooling period is important to prevent the eggs from scrambling when you add them. Once cooled, beat in 2 large eggs one at a time, mixing well after each addition until the mixture is smooth and homogeneous.

In a separate bowl, sift together 2/3 cup unsweetened Dutch-processed cocoa powder, 1/3 cup all-purpose flour, 1/4 teaspoon coarse kosher salt, and the optional 1-2 teaspoons instant espresso powder. The espresso powder, while optional, highly recommended as it enhances the chocolate flavor without adding coffee taste. Sifting these dry ingredients prevents lumps and ensures even distribution.

Gently fold the dry ingredients into the wet mixture, stirring just until everything is blended. Be careful not to overmix the batter, as this can result in tough brownies. The batter should be thick but spreadable.

Spread the brownie batter evenly over the partially baked shortbread crust. Return the pan to the oven, now set at 325°F, and bake for about 25 minutes. The brownies are done when the top appears crackled and puffed. Avoid overbaking, as this will dry out the brownies and compromise their fudgy texture. Once baked, allow the brownies to cool completely in the pan before proceeding to the ganache stage.

Creating the Ganache Topping

For the luxurious ganache topping, begin by chopping 4 ounces of good-quality dark chocolate (ideally 55-60% cacao) into small, uniform pieces. Place the chopped chocolate in a heat-proof bowl.

In a small saucepan, heat 4 ounces of heavy whipping cream until it’s hot and just beginning to simmer at the edges. You’ll know it’s ready when you see small bubbles forming around the circumference of the pan. Do not let it come to a full boil.

Pour the hot cream over the chopped chocolate and let it sit for about 2 minutes undisturbed. This allows the heat from the cream to gently melt the chocolate. After 2 minutes, stir the mixture starting from the center and working outward until the ganache becomes completely smooth and shiny.

Spread the ganache evenly over the cooled brownie layer using an offset spatula. For a decorative touch, you can sprinkle some reserved chopped chocolate on top while the ganache is still wet. Let the ganache set for about 1 hour at room temperature or 30 minutes in the refrigerator until it’s firm to the touch.

To serve, use the parchment paper edges to lift the entire block of brownies out of the pan. Cut into squares with a sharp knife, wiping the knife clean between cuts for neat edges. This recipe yields 16 satisfying portions.

For more delicious dessert inspiration, check out our wild blueberry preserves recipe that makes a perfect accompaniment to these chocolate bars.

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Dietary Substitutions to Customize Your Brownie Shortbread Bars Ganache

These Brownie Shortbread Bars Ganache can be easily customized to suit various dietary preferences and restrictions without compromising on taste or texture. Below are some tried-and-tested substitutions that work exceptionally well.

Butter and Dairy Alternatives

For those following a vegan diet or with dairy sensitivities, the butter in both the shortbread and brownie layers can be substituted with coconut oil or a high-quality vegan margarine. The key is to ensure that the alternative fat is at a similar consistency to butter when cold solid but easily diced. For the ganache, coconut cream (the thick cream from a can of full-fat coconut milk) creates a rich, dairy-free alternative to heavy whipping cream.

Egg Replacements

To make the recipe egg-free, each large egg can be replaced with a flaxseed or chia egg. To prepare a flaxseed egg, mix 1 tablespoon of ground flaxseed with 3 tablespoons of water and let it sit for 5-10 minutes until it gels. This creates a binding agent similar to eggs and maintains the moist texture of the brownies.

Gluten-Free Adaptations

For a gluten-free version, substitute the all-purpose flour in both the shortbread crust and brownie layer with a high-quality gluten-free flour blend that contains xanthan gum. The properties are similar enough that no other adjustments should be necessary. If your preferred blend doesn’t contain xanthan gum, add 1/4 teaspoon per cup of flour to help with binding and texture.

Sugar and Chocolate Modifications

To reduce the sugar content, you can substitute the granulated sugar with natural sweeteners like erythritol, stevia blends, or monk fruit sweeteners. If using liquid sweeteners, you may need to slightly reduce other liquid ingredients. For the ganache, choose chocolate with a higher cocoa content (70-85%) to reduce sugar while maintaining flavor depth.

Flavor Variations

• Orange Chocolate: Add 1 tablespoon of orange zest to the shortbread crust and 1 teaspoon orange extract to the ganache for a sophisticated chocolate-orange flavor profile.
• Spiced Chocolate: Incorporate 1/2 teaspoon cinnamon and a pinch of cayenne pepper to the brownie layer for a Mexican chocolate-inspired variation.
• Mint Chocolate: Add 1/2 teaspoon mint extract to the ganache for a refreshing mint chocolate experience.
• Nutty Crunch: Stir 1/2 cup of chopped toasted nuts like pecans, walnuts, or almonds into the brownie layer for added texture and flavor.

Mastering Brownie Shortbread Bars Ganache: Advanced Tips and Variations

Once you’ve mastered the basic recipe for Brownie Shortbread Bars Ganache, you can explore these advanced techniques and flavor variations to create even more impressive versions of this already remarkable dessert.

Pro Techniques for Perfect Layers

For an exceptionally smooth shortbread crust, consider using a food processor to combine the ingredients. Pulse the dry ingredients together first, then add the cold butter and pulse until the mixture resembles coarse crumbs. This method creates a more uniform crust with less effort and greater consistency.

When creating the brownie batter, the temperature control is crucial. Make sure the butter-sugar mixture has cooled sufficiently before adding the eggs. If the mixture is too hot, it may scramble the eggs, resulting in a less than ideal texture. Similarly, avoid overmixing the batter once the dry ingredients are added, as this can develop gluten and make the brownies tough.

For the smoothest ganache, ensure your chocolate is finely chopped. Regular pieces won’t melt as evenly, potentially resulting in a grainy texture. When pouring the hot cream over the chocolate, let it sit undisturbed for several minutes to allow the heat to penetrate the chocolate before stirring.

Decorating and Presentation Tips

To create professional-looking bars, consider these presentation techniques:

• For clean cuts, chill the entire block of brownies in the refrigerator for at least 30 minutes before slicing.
• Use a large chef’s knife dipped in hot water and wiped dry between each cut for perfect, clean edges.
• Create a marble effect in the ganache by swirling in a tablespoon of melted white chocolate before it sets.
• Garnish with a light dusting of cocoa powder, edible gold flakes, or fresh berries right before serving.
• Create a pattern on the ganache by gently dragging a fork through the surface in a wave pattern before it sets.

Flavor Variations to Elevate Your Bars

While the classic chocolate brownie shortbread bars are divine on their own, these variations can add an extra dimension to your dessert:

Add a Caramel Layer: After the brownie layer has cooled but before adding the ganache, spread a thin layer of dulce de leche over the brownies. The thicker consistency of dulce de leche works better than regular caramel sauce, as mentioned in the FAQs, because it helps the bars maintain their structure when sliced.

Incorporate Nuts: As suggested in the FAQs, adding finely chopped nuts to the shortbread crust provides a delightful crunch and depth of flavor. Pecans and almonds work particularly well with the chocolate flavors. You can also sprinkle toasted nuts on top of the ganache before it sets for added texture.

Add a Fruit Element: Consider adding a thin layer of seedless raspberry jam between the brownie and ganache layers. The tartness of the fruit cuts through the richness of the chocolate, creating a more balanced flavor profile. You can find excellent jam recipes on our homemade jam page.

Mocha Variation: Increase the instant espresso powder to 2 teaspoons in the brownie layer and add 1 teaspoon to the ganache for a pronounced coffee-chocolate flavor that adults will particularly enjoy.

Salted Caramel: Sprinkle a pinch of flaky sea salt over the ganache before it sets to enhance all the flavors and create a sophisticated salted chocolate experience.

Make-Ahead and Batch Cooking Strategies

These Brownie Shortbread Bars Ganache are ideal for advance preparation. In fact, many bakers find the flavor improves when the bars have had time to rest. Here are some make-ahead strategies:

You can prepare the bars up to two days in advance. Store them in the refrigerator after the ganache has set, allowing the flavors to meld together. Bring them to room temperature for about 30 minutes before serving for optimal flavor and texture.

For large gatherings or holiday gift-giving, consider doubling the recipe and using a 9×13-inch baking dish. You’ll need to adjust the baking time slightly expect the shortbread to take 5-7 minutes longer and the brownie layer to take an additional 7-10 minutes.

These bars also freeze exceptionally well. Once fully assembled and cut, wrap individual bars tightly in plastic wrap, then place them in a freezer-safe container. They’ll keep for up to 3 months in the freezer. To serve, thaw them in the refrigerator overnight or at room temperature for about an hour.

How to Store Brownie Shortbread Bars Ganache: Best Practices

Proper storage is key to maintaining the quality and freshness of your Brownie Shortbread Bars Ganache. Follow these guidelines to ensure your dessert remains delicious from the first bite to the last.

Short-Term Storage

For short-term storage, keep the bars in an airtight container at room temperature for up to 3 days. The key is to prevent the ganache from absorbing any odors while maintaining its smooth texture. If your kitchen is particularly warm or humid, it’s better to store them in the refrigerator to prevent the ganache from becoming too soft.

When storing at room temperature, place a sheet of parchment paper between layers of bars to prevent them from sticking together. This makes it easier to remove individual servings without damaging the ganache topping.

Long-Term Storage

For longer storage, freezing is the best option. To freeze the bars properly, first ensure they are completely cooled and the ganache is fully set. Then, cut them into individual squares and wrap each one tightly in plastic wrap. For added protection against freezer burn, place the wrapped bars in a freezer-safe container or zip-top bag.

When properly frozen, these bars will maintain their quality for 3-6 months. Label your container with the date so you can keep track of their storage time. To thaw, transfer the desired number of bars to the refrigerator and let them thaw overnight.

Temperature Considerations

The ideal serving temperature for these bars depends on personal preference:

• Room Temperature: Allows for the full expression of flavors and a softer texture. This is generally the preferred way to experience the nuanced chocolate flavors.
• Refrigerated: Creates a firmer texture, with a more pronounced snap from the ganache. Some prefer this on warm days or for a more refreshing dessert experience.
• Slightly Warm: If you prefer a gooier, more intense chocolate experience, you can microwave individual bars for 10-15 seconds. Avoid overheating, as this can cause the ganache to lose its silky texture.

FAQs: Frequently Asked Questions About Brownie Shortbread Bars Ganache

Brownie Shortbread Bars Ganache

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🍫 These High Altitude Brownie Bars offer a delightful combination of a buttery shortbread crust, rich chocolate brownie, and silky ganache topping.
🏔️ Specifically formulated for high altitude baking, this recipe ensures perfect texture and decadent flavor even at elevations such as 5,280 feet.

• Total Time: 4 hours 10 minutes
• Yield: 16 bars 1x

Ingredients

Scale 1x2x3x

1 cup all-purpose flour

1/3 cup granulated sugar

1/2 teaspoon coarse kosher salt (or half if using table salt)

1/2 teaspoon vanilla extract

1/2 cup cold unsalted butter, diced

1/2 cup unsalted butter

1 cup granulated sugar

1/2 cup semi-sweet chocolate chips

2 teaspoons vanilla extract

2 large eggs

2/3 cup unsweetened Dutch-processed cocoa powder

1/3 cup all-purpose flour

1/4 teaspoon coarse kosher salt (or half if using table salt)

1–2 teaspoons instant espresso powder (optional)

4 ounces good-quality dark chocolate (55-60% cacao)

4 ounces heavy whipping cream

Cook Mode Prevent your screen from going dark

Instructions

1-Creating the Shortbread Crust: Start by preheating your oven to 350°F and lining an 8×8-inch baking dish with parchment paper. This will make lifting the bars out later much easier and ensure clean edges.

In a mixing bowl, combine 1 cup all-purpose flour, 1/3 cup granulated sugar, 1/2 teaspoon coarse kosher salt, and 1/2 teaspoon vanilla extract. Mix these dry ingredients together before cutting in the cold unsalted butter that you’ve diced into small cubes. Using a fork, pastry cutter, or food processor, work the butter into the dry ingredients until the mixture reaches a crumbly consistency similar to coarse meal.

Press the crumbly mixture firmly and evenly into the bottom of your prepared baking dish. Make sure to create compact, even layers without gaps. Bake this shortbread crust for 15 minutes or until it turns a pale golden color. Once baked, remove from the oven and reduce the temperature to 325°F for the brownie layer.

2-Preparing the Brownie Layer: While the shortbread crust is baking, begin preparing the brownie layer. In a saucepan over medium heat, combine 1/2 cup unsalted butter and 1 cup granulated sugar. Heat this mixture, stirring occasionally, until it begins to bubble. Once bubbling, continue cooking for exactly 2 minutes to help dissolve the sugar and create a smooth base.

Remove the saucepan from the heat and stir in 1/2 cup semi-sweet chocolate chips and 2 teaspoons vanilla extract. Continue stirring until the chocolate chips have completely melted and the mixture is smooth. This step is crucial for developing a rich chocolate flavor base.

Allow the mixture to cool for about 10 minutes. This cooling period is important to prevent the eggs from scrambling when you add them. Once cooled, beat in 2 large eggs one at a time, mixing well after each addition until the mixture is smooth and homogeneous.

In a separate bowl, sift together 2/3 cup unsweetened Dutch-processed cocoa powder, 1/3 cup all-purpose flour, 1/4 teaspoon coarse kosher salt, and the optional 1-2 teaspoons instant espresso powder. The espresso powder, while optional, highly recommended as it enhances the chocolate flavor without adding coffee taste. Sifting these dry ingredients prevents lumps and ensures even distribution.

Gently fold the dry ingredients into the wet mixture, stirring just until everything is blended. Be careful not to overmix the batter, as this can result in tough brownies. The batter should be thick but spreadable.

Spread the brownie batter evenly over the partially baked shortbread crust. Return the pan to the oven, now set at 325°F, and bake for about 25 minutes. The brownies are done when the top appears crackled and puffed. Avoid overbaking, as this will dry out the brownies and compromise their fudgy texture. Once baked, allow the brownies to cool completely in the pan before proceeding to the ganache stage.

3-Creating the Ganache Topping: For the luxurious ganache topping, begin by chopping 4 ounces of good-quality dark chocolate (ideally 55-60% cacao) into small, uniform pieces. Place the chopped chocolate in a heat-proof bowl.

In a small saucepan, heat 4 ounces of heavy whipping cream until it’s hot and just beginning to simmer at the edges. You’ll know it’s ready when you see small bubbles forming around the circumference of the pan. Do not let it come to a full boil.

Pour the hot cream over the chopped chocolate and let it sit for about 2 minutes undisturbed. This allows the heat from the cream to gently melt the chocolate. After 2 minutes, stir the mixture starting from the center and working outward until the ganache becomes completely smooth and shiny.

Spread the ganache evenly over the cooled brownie layer using an offset spatula. For a decorative touch, you can sprinkle some reserved chopped chocolate on top while the ganache is still wet. Let the ganache set for about 1 hour at room temperature or 30 minutes in the refrigerator until it’s firm to the touch.

To serve, use the parchment paper edges to lift the entire block of brownies out of the pan. Cut into squares with a sharp knife, wiping the knife clean between cuts for neat edges. This recipe yields 16 satisfying portions.

Last Step:

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Notes

🍴 Using a food processor simplifies making the shortbread crumb.
⏲️ Avoid overbaking brownies; 25 minutes gives the best texture.
🌰 Add chopped nuts to crust or dulce de leche/caramel as a middle layer after baking for variation.

• Author: Brandi Oshea
• Prep Time: 30 minutes
• Cooling time: 3 hours
• Cook Time: 40 minutes
• Category: Dessert
• Method: Baking
• Cuisine: American
• Diet: Vegetarian

Nutrition

• Serving Size: 1 bar