Food & Cooking Recipes Dessert & Treats Recipes Cookie Recipes Mocha-Chip Meringues 3.7 (128) 15 Reviews By Martha Stewart Test Kitchen Martha Stewart Test Kitchen The recipes developed by our test kitchen team have undergone a rigorous process of development and testing, ensuring that every element is optimal, from ingredient amounts to method and cooking time. This process includes triple-testing recipes to ensure they meet our high standards. The many stellar cooks and food editors who have been part of our team include Sarah Carey, Lucinda Scala Quinn, Jennifer Aaronson, Shira Bocar, Anna Kovel, Greg Lofts, Riley Wofford, Lauren Tyrell, and Lindsay Leopold. Editorial Guidelines Updated on June 12, 2017 Print Rate It Share Share Tweet Pin Email Yield: 48 Espresso powder intensifies the chocolatey taste of these elegant little cookies. Ingredients ¾ cup sugar 1 tablespoon cornstarch 3 large egg whites, room temperature ¼ teaspoon salt 1 teaspoon instant espresso powder 3 tablespoons unsweetened cocoa powder ½ cup semisweet chocolate chips Directions Preheat oven to 300 degrees, with racks in upper and lower thirds. Line two large baking sheets with parchment paper; set aside. In a small bowl, whisk together sugar and cornstarch; set aside. In a large bowl, using an electric mixer, beat egg whites and salt on medium speed until frothy. Beating constantly, add sugar mixture 1 tablespoon at a time; beat until stiff, glossy peaks form, 6 to 8 minutes total (scrape down the bowl halfway through). Add espresso powder and cocoa; beat until well blended. With a rubber spatula, fold in chocolate chips. Drop batter by level tablespoons onto prepared baking sheets, about 1 inch apart. Bake until crisp, about 40 minutes, rotating sheets halfway through. Cool completely on sheets, about 20 minutes. Rate it Print