Chocolate cake with chocolate frosting

Cake:
ingredients:
1 c. buttermilk
2 eggs (room temp.)
1/2 c. vegetable oil
1 t. vanilla
2 3/4 c. flour
2 t. baking soda
1 t. baking powder
1 t. salt
3/4 c. cocoa
2 c. sugar
1 c. coffee




Stir together dry ingredients (flour, salt, baking powder and soda, and sugar).
Mix together buttermilk, eggs, oil, and vanilla. Stir into dry ingredients.
Beat until smooth. Add coffee gradually.
Fill 2 round pans and bake at 350 for 30 min.

Frosting:
Ingredients:
2 sticks of butter (room temp.)
1 egg yolk (room temp.)
1 t. vanilla
1 1/4 c. powdered sugar
6 oz. semi- sweet chocolate (melted)
2 T. coffee

Beat butter until light and fluffy.
Add egg yolk and vanilla. Beat together.
Add powdered sugar gradually while beating.
Add melted chocolate, and coffee.
Do not over beat. Use immediately.