I used the chocolate cake recipe from here:
Homemade Chocolate Cake Mix Recipe
The frosting is a basic butter frosting recipe.
The top of the cake frosting is way too thick. I know. I used it sparingly for the middle, and had tons left for the top, lol. Also, the plate I put it on caused it to dip a bit in the middle, so I leveled it out with the frosting. We had to scrape it off as we ate, to avoid overload!