1-Preparation Before Mixing: Before you begin mixing ingredients, take these important preparation steps:
1. Preheat your oven to 350°F (175°C).
2. Grease a 9-inch square or 2.5-quart baking dish lightly with oil or butter, or line with parchment paper for easy removal.
3. Gather all ingredients and ensure they’re at the proper temperature (butter should be cold for the crumb topping).
4. Measure out all ingredients in separate bowls to streamline the mixing process.

2-Making the Crumb Topping: The crumb topping is what gives this coffee cake its signature texture and spicy sweetness:
1. In a medium bowl, combine 1/2 cup all-purpose flour, 1/2 cup packed brown sugar, and 1 and 1/2 teaspoons ground cinnamon.
2. Add 1/4 cup cold unsalted butter, cut into small cubes.
3. Using a fork, pastry cutter, or your fingertips, cut the butter into the flour mixture until coarse crumbs form.
4. Set the crumb topping aside while you prepare the cake batter.

3-Preparing the Pumpkin Coffee Cake Batter: The cake batter comes together quickly with these simple steps:
1. In a large bowl, whisk together the dry ingredients: 2 cups all-purpose flour, 1 teaspoon baking soda, 1/2 teaspoon baking powder, 1/2 teaspoon salt, 1 and 1/2 teaspoons ground cinnamon, 1/2 teaspoon ground nutmeg, 1/4 teaspoon ground cloves, and 1/4 teaspoon ground ginger.
2. In a separate bowl, whisk together the wet ingredients: 1 cup pumpkin puree, 1/2 cup packed brown sugar, 1/2 cup canola or vegetable oil, 1/4 cup pure maple syrup, and 1/4 cup milk.
3. Pour the wet ingredients into the dry ingredients and stir just until combined. The batter will be thick avoid overmixing to prevent a tough cake.
4. Spread the batter evenly in the prepared baking pan.
5. Sprinkle the crumb topping over the batter and gently press it into the surface.

4-Baking and Finishing the Cake: These final steps will complete your pumpkin crumb coffee cake:
1. Bake for 30 to 35 minutes, or until a toothpick inserted into the center comes out clean or with a few moist crumbs.
2. While the cake bakes, prepare the vanilla icing by whisking together 1 cup confectioners’ sugar, 2 tablespoons pumpkin spice creamer (or half-and-half or milk), and 1/4 teaspoon pure vanilla extract. If needed, thin the icing with additional liquid.
3. Remove the cake from the oven and let it cool slightly before drizzling with the icing.
4. Drizzle the icing over the warm or cooled cake as desired.
5. Allow the cake to cool completely before slicing for cleaner cuts.