Food & Cooking Recipes Dessert & Treats Recipes Lady Baltimore Frosting By Martha Stewart Editors Martha Stewart Editors Facebook Instagram Twitter Website An article attributed to "Martha Stewart Editors" indicates when several writers and editors have contributed to an article over the years. These collaborations allow us to provide you with the most accurate, up-to-date, and comprehensive information available.The Martha Stewart team aims to teach and inspire readers daily with tested-until-perfected recipes, creative DIY projects, and elevated home and entertaining ideas. They are experts in their fields who research, create, and test the best ways to help readers design the life they want. The joy is in the doing. Editorial Guidelines Updated on September 28, 2016 Print Share Share Tweet Pin Email Yield: 1 9-inch cake Ingredients 1 ½ cups sugar ½ teaspoon light corn syrup ⅔ cup water 2 large egg whites 1 teaspoon pure vanilla extract 1 pinch coarse salt Directions In a small saucepan, combine sugar, corn syrup, and the water. Bring to a boil over high heat, stirring to dissolve the sugar. When sugar has dissolved, continue to cook without stirring, until it reaches 248 degrees as measured on a candy thermometer. In the bowl of an electric mixer fitted with the whisk attachment, beat egg whites, vanilla, and salt until stiff peaks form. When sugar mixture has reached 248 degrees. pour it into the beaten egg whites while beating constantly on high speed, until the mixture is cool and is the proper consistency for spreading, about 7 minutes. Print