1-Follow these simple steps to create a mouthwatering sweet potato casserole that’s full of classic flavors. Start by preheating your oven to 375°F and greasing a 9 x 13-inch pan, which sets the stage for even cooking. This method ensures the dish turns out just right every time, with minimal fuss.

2-Next, boil the 3 pounds of sweet potato cubes in water for about 15 minutes until they’re fork-tender, then drain them to remove excess moisture. Mash the sweet potatoes with 1/2 cup packed brown sugar, 1/3 cup softened salted butter, 1/4 teaspoon cinnamon, 1/2 teaspoon vanilla extract, salt, and black pepper to taste for a smooth mixture. Fold in half of the 3/4 cup chopped pecans to add a nutty element.

3-Spread the mixture evenly in your prepared baking dish for uniform baking. Top it with the remaining half of the 3/4 cup chopped pecans and 2 cups miniature marshmallows to create that irresistible crunchy layer. Finally, bake for 25 minutes until the marshmallows turn golden brown and the casserole is heated through, resulting in a dish that’s ready to serve warm.