Is it marshmallow or marshmellow?

It is marshmallow not marshmellow. “Marshmallow,” which is the name of a flowering plant and the name of the sweet ingredient in s’mores, does not have an “e.” A long time ago, marshmallows and other candies (as well as cough medicines) were made from the sap of the marshmallow plant. Marshmallow plants are one of the many varieties of mallow, which also include the tree mallow and the wax mallow.

The QuillBot Grammar Checker can help you avoid errors like “marshmellow” in your writing.