Food & Cooking Recipes Dessert & Treats Recipes Dani Fiori's Royal Icing 3.0 (44) 6 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 May 16, 2017 Print Rate It Share Share Tweet Pin Email Yield: 5 cups Use to make adorable decorated cookies from Sweet Dani B owner Dani Fiori. Ingredients ½ cup meringue powder 2 pounds confectioners' sugar 2 teaspoons freshly squeezed lemon juice Directions Using a hand mixer with the whisk attachment, mix together meringue powder with 1 cup water until soft peaks form, about 1 minute. Using the beater attachments, add sugar and lemon juice; continue mixing until well combined, scraping down the sides of the bowl as necessary. Rate it Print