Step 1

Preheat oven to 350°F (180°C)

Step 2

Cream the butter and sugar until fluffy. Beat in 4 eggs, one at a time.

Step 3

In a separate bowl, mix the flour, cocoa powder, and baking soda. Alternate mixing half of the dry ingredients and buttermilk into the egg mixture.

Step 4

Line the bottom of a 9×13 (22x33 cm) glass dish with parchment paper, and grease. Pour in batter, and bake for 22-25 minutes.

Step 5

For the filling, mix the marshmallow fluff, butter, powdered sugar, and vanilla. Set a little aside, and color the rest.

Step 6

Cool completely, and with a 2-3 inch (5-7 c m) cookie cutter or biscuit cutter, cut 12 circles into the cake.

Step 7

Cut each cake in half horizontally, and scoop out a little cake out of each side. Fill, and stack the cake with the scooped sides in the middle.

Step 8

For the frosting, bring the cream and sugar to a boil, and pour over the chocolate chips and butter. Stir until there are no longer lumps.

Step 9

Spread the frosting over the top and sides of each cake. Let dry, flip, and cover the bottom with frosting.

Step 10

Pipe a football design on the top of the cake with the filling you set aside.

Step 11

Enjoy!