I recently tried to cupcake recipes, one for mango, the other for chocolate chip cookie dough. Both start off with a mix but add other things to doctor it up (pudding mix, mango puree etc.). Both cupcakes are REALLY delicious when you taste them, but appearance-wise..eh not so much. They always seem to collapse when cooling on a rack (or even when you pull them out of the oven sometimes).
My from scratch cupcakes always dome nicely.
Does anyone have a possible reason for why this happens and a possible solution for it?