Royal Icing for Marshmallow Treats
Use this recipe to decorate our Sugar-Coated Marshmallow Bunnies and Chicks, Chocolate-Coated Marshmallow Chicks, and Flat Marshmallow Shapes. While not in use, the tip of the icing bag should be wrapped in a damp paper towel -- icing hardens quickly when exposed to air.
Martha Stewart Living, April 2001