Recipes and Cooking Double-Boiler Marshmallow Frosting 4.3 (4) Add your rating & review Fresh egg whites make this frosting the real deal (versus using pasteurized meringue powder). 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 October 1, 2014 Print Rate It Share Share Tweet Pin Email Servings: 12 Ingredients 1 ½ cup sugar ⅓ cup cold water 2 egg whites ¼ teaspoon cream of tartar 1 teaspoon vanilla Directions In the top of a double boiler combine sugar, cold water, egg white, and cream of tartar. Beat with an electric mixer on low speed for 30 seconds. Place over boiling water (upper pan should not touch water). Cook, beating constantly with the electric mixer on high speed, about 10 minutes or until frosting forms stiff peaks (tips stand straight) and mixture reaches 145°F for 3 minutes or 160°F for 15 seconds when tested with an instant read thermometer. Scrape pan occasionally. Remove from the heat; add vanilla. Beat 2 to 3 minutes more or until frosting reaches spreading consistency. Makes xx cups. Double-Boiler Marshmallow Coffee Frosting: In the top of a 2-quart double boiler combine 3/4 cup sugar, 2 tablespoons plus 2 teaspoons cold water (8 teaspoons), 1 egg white, and 1/8 teaspoon cream of tartar. Beat with an electric mixer on low speed for 30 seconds. Place over boiling water (upper pan should not touch water). Cook, beating constantly with the mixer on high speed, about 10 minutes or until frosting forms stiff peaks (tips stand straight) and an instant-read thermometer inserted in the mixture* registers 145°F for 3 minutes or 160°F for 15 seconds. Scrape pan occasionally. Remove pan from heat. Add 1 1/2 teaspoons coffee liqueur or strong brewed coffee and 1/2 teaspoon vanilla. Beat about 1 minute more or until frosting is fluffy and holds soft peaks (tips curl). Makes xx cups. Rate it Print