This homemade Marshmallow Frosting Recipe will be your go-to any time you need that irresistible sweetness mixed with a light and fluffy texture for your cupcakes, cakes or s'mores! Its light color means it's easy to tint in any color to fit your party palette and its texture makes it perfect for piping. Top off your next batch of cupcakes with this delicious marshmallow fluff frosting that will taste better than if you just used a jar of marshmallows from the shelf.