Chocolate Cake with Fudgy Frosting

I've made this twice. It's good. Sooo good.

The cake was found here, slightly adapted recipe below.

Chocolate Cake

2 eggs
1 3/4 c. white sugar
1/2 veg oil
1/2 tsp baking soda
1 1/2 tsp baking powder
1 tsp salt
3/4 C. cocoa powder (I love dark chocolate)
1 3/4 C. flour
1 C milk
2 tsp vanilla
1 c. really hot coffee

Mix eggs, sugar and oil. Add all dry ingredients, mix. Add milk and vanilla. Mix well. Add coffee and mix briefly.

Pour into greased 9in circle pans. Bake at 350 for 30-35 min.Turn out of pan and cool.

Frosting (No source, this is just what I do)
1 stick butter
3/4 c. cocoa powder (I love dark)
2/3 c. plain yogurt (or you can use sour cream)
1 tsp vanilla
4-6 c. powedered sugar

Mix butter, cocoa, yogurt and vanilla. Add powdered sugar one cup at a time until the right consistency. (I usually replace one cup of powdered sugar with flour, just to cut the sweetness)

Frost cake once cool and enjoy!