Do I need to wrap them individually? Like plastic wrap them foil?
This will save me lots o' time next week.
Thanks!
For that short of time I think you don't need individual but it wouldn't hurt. Sometimes I toss leftover cake in a freezer tight container on its own and it thaws perfect.
For that amount of time, I'd throw them all in an airtight container and call it a day. Thaw the day before and frost. No one will ever know they were frozen. If SIL asks, tell her that they went over so well at her party that you just made them again :-)
Not tacky, but do you think your SIL will be obnoxious about it? I might change the topping or something if you think (or care) that she might cause a scene.