Chocolate Fudge Cake

I have been in the mood for really moist fudgey cake lately. So, I made up this recipe and it was SOOO good!

Cake:
1 package Chocolate Cake Mix (and ingredients)
3/4 cup sour cream

Mix all together and bake according to instructions on box. (It may take a little longer to bake with the sour cream, so just watch it.)

Fudge Topping:
1 stick butter (1/2 cup.)
6 oz. chocolate chips (half bag)
1 1/3 cup evaporated milk
2-3 cups powdered sugar
1 tsp. vanilla

Melt butter in saucepan. Add chocolate chips and stir well. Add evaporated milk and powdered sugar. Boil for 3-5 minutes. Take off heat and add vanilla.

Poke holes in cake and pour over.
**If you want it a little thicker and yummier, try beating in 8 oz. of cream cheese to the topping, then frost!**