My suggestion would be that if these will not be consumed on the same day you make them, either: (backforseconds.com)
Serve a cake with fluffy frosting the same day you make it. (bettycrocker.com)
Notes: If you're not going to decorate the cupcakes the same day you make them, be sure to store them in an airtight container overnight. (thelittlekitchen.net)