Intensely rich devil's food cake with velvety chocolate layers is a deep, dark chocolate lover's dream. This decadent family celebration cake delivers pure chocolate indulgence.
Preheat the oven to 350°F. Grease two 9-inch round cake pans thoroughly with butter and line with parchment paper for easy release.
In a large bowl, sift together the flour, cocoa powder, baking soda, and salt to ensure even distribution and a smooth batter texture.
Cream the unsalted butter and granulated sugar with an electric mixer on medium speed for 3-5 minutes until fluffy, then add eggs one at a time, beating well after each addition.
Alternately add the flour mixture and buttermilk to the butter mixture, starting and ending with flour, mixing gently on low speed. Blend in vanilla extract.
Gradually pour in hot coffee to the batter, stirring slowly until the mixture is glossy and smooth. Do not overmix to preserve tenderness.
Divide the batter between the two pans and bake for 30–35 minutes. Cakes are done when a toothpick inserted in the center comes out clean with minimal moist crumbs.
Cool cakes in the pans for 10 minutes, then turn out onto a rack to cool completely before frosting or serving.