Best Chocolate Cake in the World

One box of dark fudge cake mix
4 eggs
3/4 cup vegetable oil
1 cup sour cream

Mix together all ingredients. Pour into a 9 x 13 cake pan that has been sprayed with cooking oil spray. Bake 40 minutes in an oven preheated to 325 degrees. Allow to cake to cool completely.

Frosting:

1 stick of butter melted
2/3 cup unsweetened cocoa powder
3 cups powdered sugar
1/3 cup sour cream
1 teaspoon vanilla extract

Place the melted butter in a large mixing bowl and add the cocoa powder. Whisk until smooth. Add the powdered sugar alternately with the sour cream, blending with an exectric mixer on low speed for 1 to 1 and 1/2 minutes or until incorporated. Stop the mixer and add the vanillla. Increase the mixer speed to medium and beat until light and fluffy, 1 minute or more. Frost your cake and you are now ready to eat the best Chocolate cake in the world!!