Hi,
Several thoughts:
- After greaseing your pans, Line the bottom with either parchment or wax paper. It will make it easier to release your cake without something sticking to the bottom.
- I prefer to remove the cake from the pan after 5-10 minutes and let it rest on a rack. If I am frosting the cake later, two options: wrap
completely cooled cake and let it sit on the counter OR I take the rack it is sitting and put it in a cold oven. The oven does a great job of keeping the cake moist because it is a sealed zone.
If you let the cake cool or store inthe cake pan you run the risk of the cake cooling and adhering to the pan. If this happens, gently heat the bottom for any fat to melt and help release the cake. A tip courtesy of Cook's Illustrated.
- Your filling has a mousse, I suggest storing it in the refrigerator. I would take it out at least 30 minutes before planning to serve to get it warmer and allow for a fuller flavor.
- I have some cardboard circles bought ages ago in a baking supply store, though I am sure they could be found at a craft store, too. Almost never use them, because I have the cake on a platter or cake stand. Another thought: I smear some frosting on the plate, then place a cake layer on it. This frosting keeps your cake from sliding off.
If you can do a Bundt cake, you can do a layer cake.
Regards,