Costco Chocolate Cake Recipe

A Costco chocolate cake recipe is a cake made using a Costco chocolate cake. It also makes a great party cake; I have tried this recipe repeatedly. This simple chocolate cake is moist, rich, and delicious.

This recipe is healthier than what you will probably find in most Pinterest recipes because there are very few ingredients, but those few ingredients will not compromise the taste of the dessert.

Although the brand has its brand, other places have their Costco products. Other locations may have Costco chocolate cake for purchase, but it’s not made of the same ingredients.

These other brands and locations make their version of the commercial product.

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Costco Chocolate Cake

How To Prepare Costco Chocolate Cake Recipe?

Preparation Time: 20 minutes

Cooking time: 30 minutes

Serving Size: 10


  • 2 cups all-purpose flour
  • 2 cups granulated sugar
  • ¾ cup unsweetened cocoa powder
  • 2 tsp baking powder
  • 1 ½ tsp baking soda
  • 1 tsp salt
  • 1 cup buttermilk
  • ½ cup vegetable oil
  • 2 large eggs
  • 2 tsp vanilla extract
  • 1 cup hot water
  • 1 recipe of chocolate buttercream frosting (see below)

Chocolate Buttercream Frosting Recipe:

  • 1 ½ cups unsalted butter, softened
  • 1 cup unsweetened cocoa powder
  • 5 cups powdered sugar
  • 1/2 cup milk
  • 2 tsp vanilla extract

Instructions Step By Step:

1. Preheat oven to 350°F. Grease and flour two 9-inch round cake pans.

2. In a large mixing bowl, combine the flour, sugar, cocoa powder, baking powder, baking soda, and salt. Stir well to combine.

3. In a separate mixing bowl, whisk together the buttermilk, vegetable oil, eggs, and vanilla extract until smooth.

4. Gradually add the wet ingredients to the dry ingredients, mixing until just combined.

5. Stir in the hot water until the batter is smooth.

6. Pour the batter evenly into the prepared cake pans.

7. Bake for 35-40 minutes, or until a toothpick inserted into the center of the cakes comes out clean.

8. Let the cakes cool in the pans for 10 minutes, then remove from the pans and transfer to a wire rack to cool completely.

9. Once the cakes are cool, spread a thick layer of chocolate buttercream frosting between the two layers and over the top and sides of the cake.

Serve and enjoy!

Chocolate Buttercream Frosting Recipe:

1. In a large mixing bowl, beat the softened butter with an electric mixer until light and fluffy.

2. Gradually add the cocoa powder and powdered sugar, mixing until well combined.

3. Add the milk and vanilla extract, and continue beating until the frosting is smooth and creamy.

4. Use the frosting immediately to frost the cake, or cover and refrigerate until ready to use.

Costco Chocolate Cake Recipe
Costco Chocolate Cake Recipe

Nutrition Facts Of Costco Chocolate Cake Recipe

Nutrition Amount
Carbohydrates57 g
Cholesterol53 mg
Fat13 g
Protein5 g
Sodium224.5 mg
Thiamin0.3 mg
Phenylalanine0.9 mg

How Much Is A Costco Chocolate Cake?

The Costco chocolate cake is not very expensive and costs around $15-$30, which is very cheap. This is a great deal as it can be served as an entire meal or one snack.


The Costco chocolate cake recipe is a great dessert. It was not difficult to prepare, but it took some time, which is why many more steps were involved in preparing this dessert.

When you have time and care, you can prepare this amazing chocolate cake very well, and you will be happy to serve it to everyone who stops by your home!