Can you use marshmallows to make marshmallow cream?

No, you cannot use marshmallows to make marshmallow cream. Although they both contain some of the same ingredients, they are made in different ways and can't be used interchangeably. Marshmallows are made by whipping egg whites, gelatin, and sugar together, while marshmallow cream is made by cooking a mixture of sugar, corn syrup, and water, and then adding gelatin and vanilla extract.