I got to thinking about it and was wondering about all of the different cake/filling combos. What is your most popular seller?
I'm only a hobby baker for now but every time I make a cake for my family they ALWAYS want chocolate cake with peanut butter filling. I actually got the recipe for the filling here on CC.
3 leches with fresh strawberry filling and vanilla cake with pinacolada filling.
Choc fudge with raspberry filling.
Everyone wants to be boring and play it safe when they get a cake from me and do white cake with almond filling or chocolate on chocolate.