Melia's HoHo Cake

Bake the cake mix as directed. Set aside.
Boil flour and milk on low heat until thick - the key is to stire the heck out of it as it heats up. Never stop stirring! Once thick, set aside and let cool. Add the rest of the ingredients and beat until fluffy. Frost the cake with it and let it stand in the refrigerator overnight.

This is my family's favourite cake.