Food & Cooking Recipes Dessert & Treats Recipes Crumble Topping for Rhubarb-Berry Crumbles 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 March 10, 2021 Print Share Share Tweet Pin Email Photo: Dana Gallagher Yield: Makes about 1 3/4 cups Use this crumble topping recipe to make our Rhubarb-Berry Crumbles. Ingredients 6 tablespoons unsalted butter, softened ¼ cup packed light-brown sugar ¼ teaspoon finely grated orange zest, optional (for Rhubarb-Berry Crumbles) 1 cup all-purpose flour Pinch of salt Directions Put butter and brown sugar, and orange zest if desired, in the bowl of an electric mixer fitted with the paddle attachment. Mix on medium speed until creamy. Stir in flour and salt. Work mixture through fingers until it forms coarse crumbs ranging in size from peas to gum balls. Print