Preparation

Step 1: Preheat the Oven

Preheat your oven to 350°F (175°C). Grease and line two 8-inch cake pans with parchment paper.

Step 2: Mix the Dry Ingredients

In a medium bowl, whisk together flour, black cocoa powder, unsweetened cocoa powder, baking powder, baking soda, and salt.

Step 3: Prepare the Wet Ingredients

In a large bowl, cream the softened butter and sugar together until light and fluffy. Add the vegetable oil, eggs, and vanilla extract, mixing until smooth.

Step 4: Combine and Color

Alternate adding the dry ingredients and buttermilk to the wet mixture, beginning and ending with the dry ingredients. Stir in the vinegar and black food coloring until the desired deep black color is achieved.

Step 5: Bake

Divide the batter evenly between the prepared cake pans. Bake for 25-30 minutes, or until a toothpick inserted in the center comes out clean.

Step 6: Cool and Frost

Allow the cakes to cool in the pans for 10 minutes, then transfer to a wire rack to cool completely.

Step 7: Make the Frosting

Beat the cream cheese and butter together until smooth. Gradually add powdered sugar and vanilla, mixing until creamy. If needed, add heavy cream to adjust consistency.

Step 8: Assemble and Serve

Spread the frosting between the layers and over the cake. Serve and enjoy!