Marshmallows are always the absolute best eaten fresh (in my opinion!). But...some do enjoy letting them sit out so they get a little crust on the outside! My boyfriend's father used to let his peeps sit out for days before he enjoyed them!
The best way to store your marshmallows is in an airtight container or bag. They will keep well for about 2-3 weeks. After that, they are still good, just not as fluffy.
For any marshmallows that include chocolate or peanut butter, the best way to store them is in the fridge.
It's always great to plan...but most marshmallows don't make it past day 2 in the house ;-)
The Artisan Marshmallow Co.