I am a cake person, not a cookie person. LOL..But I agreed to make about 150 cookie favors for a party. Sugar cookies decorated with fondant and RI. The week of the party I also have 3 cakes to make so am wondering how soon in advance  can I make the cookies  before I decorate, and how long will they last after decorated? Thanks

you can freeze cookies decorated in fondant and with RI details. Make sure the RI is completly dry, put wax paper between them, put them in an airtight container and freeze. Id take them out the night before and let thaw.