<<Disclaimer: Verify this information before applying it to your situation.>>

Regarding lady looking for GF marshmallows - Toasty Puffs Marshmallows
Miniature, distributed by Aldi, Inc, Batavia, Il 60510-1479, contain corn
syrup, sugar, corn starch, water, gelatin, artificial flavor.  We have used
these to make rice crispy bars with no ill effects.  Aldi is a discount box
store in Missouri, Arkansas and other states unknown.  I don't have a phone
number, or manufacturer.  Hope this helps.