Marshmallows...for those who are interested

Marshmallow candy dates back to ancient Egypt where it was a honey-based
candy flavored and thickened with the sap of the root of the
Marsh-Mallow plant (althea officinalis). Marsh-Mallow grows in salt
marshes and on banks near large bodies of water. It is common in the
eastern United States.

Until the mid 1800's, marshmallow candy was made using the sap of the
Marsh-Mallow plant. Gelatin replaces the sap in the modern recipes.