Dessert & Treats Recipes Cake Recipes Fillings & Frostings Buttercream Frosting Recipes Chocolate Swiss Meringue Buttercream Be the first to rate & review! By Martha Stewart Martha Stewart Martha Stewart is a bestselling author, entrepreneur, and lifestyle expert who has taught millions of people through generations the joy of entertaining, cooking, gardening, collecting, crafting, and home renovating via her eponymous magazine, Martha Stewart Living, Emmy-winning television shows, and 99 books (and counting). Based in Katonah, N.Y., where she helms her 156-acre Bedford Farm, Martha is America's first self-made female billionaire. Editorial Guidelines Updated on November 16, 2017 Rate PRINT Share Close Yield: Makes 5 1/2 cups Use this recipe when making our Gingercake House. Cook Mode (Keep screen awake) Ingredients 1 ½ cups sugar 6 ounces whipping-quality pasteurized egg whites (6 large egg whites) 1 pound (4 sticks) unsalted butter, softened 1 teaspoon pure vanilla extract 5 ½ ounces semisweet chocolate, melted and cooled Directions Put sugar and egg whites in the heatproof bowl of an electric mixer. Set bowl over a pan of simmering water; whisk until sugar is dissolved, about 5 minutes. Fit mixer with the whisk attachment. Beat the egg-white mixture on medium speed until stiff peaks form and mixture is completely cooled, about 10 minutes. Beat in butter a few tablespoons at a time. Reduce speed to low; add vanilla and melted chocolate. Beat until mixture is smooth, about 5 minutes. Cook's Notes The buttercream will keep for up to 3 days in an airtight container in the refrigerator. Egg whites make this icing glossy and smooth. If serving this cake to children, the elderly, or anyone whose health is compromised, use pasteurized egg whites (available at grocery stores) instead of separating eggs yourself. Originally appeared: Martha Stewart Living, December 2004 Rate It PRINT