Food & Cooking Recipes Dessert & Treats Recipes Peanut Butter Frosting 3.2 (165) 7 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 19, 2017 Print Rate It Share Share Tweet Pin Email Photo: Con Poulos Yield: 3 cups Use this delicious frosting to decorate our Peanut Butter and Jelly Cupcakes. Ingredients 6 ounces cream cheese ⅓ cup confectioners' sugar ½ teaspoon salt 1 cup creamy peanut butter (not natural) ½ teaspoon pure vanilla extract ½ cup heavy cream Directions Beat cream cheese and confectioners' sugar with a mixer on medium speed. Add salt, then peanut butter, then vanilla. Whisk cream until soft peaks form, then fold into peanut butter mixture. Use immediately, or cover and refrigerate for up to 2 days. (Bring to room temperature, and beat on low speed until smooth before using.) Rate it Print