Flash freezing the treats allows them to not stick together in the bag or container without having to wrap them. This works for homemade or store-bought.If you have made them at home, ensure they are completely cooled before getting started.
Lay the cut treats in a single layer on a cookie sheet and stick it in the freezer for 30 - 60 mins.
Remove from the freezer and pop your treats into a freezer bag or an airtight container
Press any air from the bag and then zip it closed. Alternatively, if you used a container, press the lid onto the top of it.
Use a marker or pen to write the date on it and the toss into the freezer.
Individually Wrapped
This works for homemade or store-bought treats. If you made them at home, ensure they are thoroughly cooled before starting.
Cut your treats into the portion sizes you will want when defrosted.
Wrap each treat completely and securely with plastic wrap and/or aluminum foil.If they will be frozen for an extended period of time you can add a second layer for extra protection.
Toss your wrapped treats into a freezer bag or freezer safe container.
Place the lid on top of the container, or squeeze all the air from the bag and zip it shut.
Write the date on the container or bag and pop it into the freezer.
Entire Pan
If you will want the entire pan of treats when defrosted, you can freeze it as a whole pan.
Make sure they are completely cooled.
Place the top on your pan. Or, if it doesn't have a top, slide the pan into a large freezer bag.
Write the date on it and slide it into the freezer.
Notes
Do it fresh: rice krispie treats can get hard and stale after 5 - 7 days, so make sure to freeze them as fresh as possible so they retain the chewy quality.Don't crush them: when they are freezing, make sure nothing is pressing on them or crushing them or they will be hard when defrosted.Keep the air out: make sure they are well wrapped, or in a bag or container without any excess air to protect them from freezer burn.