Costco Chocolate Cake Recipe
Costco Chocolate Cake is a rich, indulgent dessert known for its moist, dense texture and decadent chocolate flavor. With its layers of velvety chocolate cake and creamy frosting, this recipe is perfect for celebrations or as a special treat. Easy to make, it’s a crowd-pleaser.
Equipment
- 9×13 inch baking pan
- Mixing bowls
- Electric mixer
- Measuring cups and spoons
- Rubber spatula
Ingredients
For the Cake
- 1 and 3/4 cups all-purpose flour
- 1 and 1/2 cups granulated sugar
- 3/4 cup unsweetened cocoa powder
- 1 and 1/2 teaspoons baking powder
- 1 and 1/2 teaspoons baking soda
- 1 teaspoon salt
- 2 large eggs
- 1 cup whole milk
- 1/2 cup vegetable oil
- 2 teaspoons vanilla extract
- 1 cup boiling water
For the Frosting
- 1 cup unsalted butter softened
- 3 and 1/2 cups powdered sugar
- 1/2 cup unsweetened cocoa powder
- 1/2 cup heavy cream
- 2 teaspoons vanilla extract
- Pinch of salt
Instructions
- Preheat the Oven: Set your oven to 350°F (175°C). Grease and flour your 9x13-inch baking pan.
- Mix Dry Ingredients: In a large mixing bowl, whisk together the flour, sugar, cocoa powder, baking powder, baking soda, and salt.
- Combine Wet Ingredients: In a separate bowl, beat the eggs, then mix in the milk, vegetable oil, and vanilla extract.
- Combine and Mix: Gradually add the wet ingredients to the dry ingredients, mixing until well combined. Carefully stir in the boiling water until the batter is smooth.
- Bake the Cake: Pour the batter into the prepared pan. Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean. Allow the cake to cool completely in the pan on a wire rack before frosting.
- Cream the Butter: In a large bowl, beat the softened butter with an electric mixer until creamy.
- Add Cocoa Powder: Gradually mix in the powdered sugar and cocoa powder, blending until well combined.
- Add Cream and Vanilla: Mix in the heavy cream, vanilla extract, and a pinch of salt. Beat until the frosting is smooth and spreadable.
- Frost the Cake: Once the cake has cooled completely, spread the frosting evenly over the top and sides of the cake using a rubber spatula.
Notes
For an extra touch, you can add chocolate shavings or sprinkles on top of the frosting. To make the cake even richer, consider incorporating a layer of chocolate ganache between the cake layers or using a flavored liqueur in the cake batter for added depth.