Food & Cooking Recipes Dessert & Treats Recipes Cookie Recipes Confetti Squares 3.3 (53) 31 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 September 28, 2016 Print Rate It Share Share Tweet Pin Email Yield: 9 A twist on an old favorite, this recipe combines two kinds of sweet cereals with Rice Krispies. These squares are perfect as after-school snacks. Ingredients 9 tablespoons unsalted butter 1 teaspoon salt 12 cups (2 ½ bags) miniature marshmallows 6 cups Rice Krispies cereal 6 cups Cap'n Crunch cereal 6 cups Froot Loops cereal Vegetable-oil cooking spray Directions Lightly spray a 9-by-9-by-2-inch baking pan with vegetable-oil cooking spray; set aside. Melt butter in a large pot over medium heat. Add salt and marshmallows; stir with a wooden spoon until melted. Remove from heat. Add Rice Krispies, Cap'n Crunch, and Froot Loops, and stir until combined. Transfer the mixture to the prepared pan. To prevent sticking, coat your hands with vegetable spray, and press the mixture evenly into the pan. Let cool, about 30 minutes. Cut into 3-by-3-inch bars. Store in an airtight container for up to 3 days. Rate it Print