Recipes and Cooking Easy Marshmallow Frosting Our simplified marshmallow frosting recipe uses purchased marshmallow crème so there's no melting of marshmallows needed for the bright white, sticky-sweet marshmallow fluff frosting that's ideal atop a s'mores cake. By BHG Test Kitchen BHG Test Kitchen The Better Homes & Gardens Test Kitchen has been in continuous operation for nearly 100 years, developing and testing practical, reliable recipes that readers can enjoy at home. The Test Kitchen team includes culinary specialists, food stylists, registered and licensed nutritionists, and other experts with Bachelor of Science degrees in food science, food and nutrition, or culinary arts. Together, the team tests more than 2,500 recipes, produces more than 2,500 food images, and creates more than 1,000 food videos each year in the state-of-the-art test kitchen. Learn about BHG's Editorial Process Published on May 24, 2021 Print Rate It Share Share Tweet Pin Email Photo: Jason Donnelly Ingredients 1 cup butter, softened 1 13 ounce jar marshmallow creme 1 tablespoon clear vanilla 2 ½ cup powdered sugar Directions In a large bowl beat butter with an electric mixer on medium for 30 seconds. Add marshmallow creme and vanilla. Beat until just combined. Gradually add powdered sugar, beating until just combined. Rate it Print