1.Combine flour, sugar, cocoa, baking soda, baking powder, and salt in a large mixing bowl or stand mixer.

2.Add eggs, coffee, buttermilk, oil, and vanilla. Beat at medium speed for two minutes. The batter will be thin.

3.Pour batter into a greased and floured 9×13 pan or two 9 inch cake pans.

4.Bake at 350 degrees for 35-40 minutes for a 9×13, or 30-35 minutes for layer pans.

5.Combine frosting ingredients and mix with a hand or stand mixer.

6.Spread frosting on cooled cake.