Indulge in the rich, decadent layers of this Black Velvet Cake!

1. Preheat your oven to 350°F (175°C) and grease and flour two 9-inch round cake pans.
2. Make the cake batter: In a large bowl, whisk together the flour, sugar, baking soda, cocoa powder, and salt. In another bowl, whisk together the buttermilk, vegetable oil, eggs, vanilla extract, and vinegar. Gradually add the wet ingredients to the dry ingredients, mixing until combined. Stir in the black food coloring until you achieve a deep, rich color.
3. Bake the cake: Divide the batter evenly between the two prepared cake pans. Bake for 25-30 minutes, or until a toothpick inserted into the center of the cakes comes out clean. Let the cakes cool in the pans for 10 minutes, then transfer to a wire rack to cool completely.
4. Make the cream cheese frosting: In a large bowl, beat the softened cream cheese and butter together until smooth and creamy. Gradually add the powdered sugar, one cup at a time, beating well after each addition. Stir in the vanilla extract and heavy cream until the frosting reaches a smooth, spreadable consistency.
5. Assemble the cake: Once the cakes are completely cooled, spread a generous layer of cream cheese frosting on top of one cake layer. Place the second layer on top and frost the entire cake with the remaining cream cheese frosting.
6. Serve and enjoy: Decorate with any additional accents like sprinkles, edible glitter, or chocolate shavings for an extra touch. Slice and enjoy the rich, velvety goodness!

This Black Velvet Cake is perfect for any celebration, with its moist, flavorful layers and creamy, tangy frosting. The black color adds a striking visual, making it a showstopper for any occasion. Would you like to add any special flavor infusions to the frosting, like a touch of almond or citrus zest?