Costco Chocolate Cake Recipe (Copycat)

Ingredients

For Cake:

• 2 cups all purpose flour, spooned and leveled, not packed
• 2 cups sugar
• ¾ cup dutch processed cocoa
• 2 tsp baking soda
• 1 tsp baking powder
• 1 tsp sea salt
• ½ cup sour cream, or greek yogurt
• ½ cup vegetable oil
• 4 oz dark chocolate, high quality
• 3 eggs, large
• 2 tsp vanilla extract
• 1 cup buttermilk
• 1 cup hot water, or brewed coffee for more enhanced chocolate flavor

For Frosting:

• 1½ cups unsalted butter
• 8 oz cream cheese, room temp
• 1 tbsp vanilla extract
• 6 oz powdered sugar, sifted
• 1½ cup dutch processed cocoa, sifted
• ¼ cup heavy whipping cream
• ½ tsp salt

For Ganache (optional):

• 1 cup dark chocolate chips
• ¾ cup heavy whipping cream