My daughter's birthday was the other day and I set out to make a triple layer Nutella chocolate cake. The cake itself turned out really fluffy and moist, to the point where it actually split apart and collapsed when I frosted it. I was in tears over the disaster! Does anyone have any idea what may have went wrong, not enough egg maybe? I ended up buying one at the store for her party and we had cake pile just as a snack that night.