Desserts Cookies Brownie Recipes Chocolate Brownie Recipes Brownie-Mallow Bars 4.6 (72) 49 Reviews 13 Photos Indulge in these decadent layered brownies loaded with rich chocolate, gooey marshmallows, creamy peanut butter, and crispy rice cereal. This easy-to-make treat is a family favorite at my house. Submitted by Pancake555 Updated on October 25, 2024 Save Rate Print Share Add Photo 13 13 13 13 Prep Time: 10 mins Cook Time: 35 mins Additional Time: 1 hr Total Time: 1 hr 45 mins Servings: 30 Jump to Nutrition Facts Cook Mode (Keep screen awake) Ingredients 1x 2x 4x Oops! Something went wrong. Our team is working on it. Original recipe (1X) yields 30 servings 1 (19.8 ounce) package brownie mix ½ cup vegetable oil ¼ cup water 2 large eggs 1 (10.5 ounce) package miniature marshmallows 2 cups semisweet chocolate chips 1 cup peanut butter 1 tablespoon unsalted butter 1 ½ cups crispy rice cereal Directions Preheat the oven to 350 degrees F (175 degrees C). Grease a 9x13-inch baking dish. Mix brownie mix, oil, water, and eggs in a large bowl until smooth. Spread evenly in the prepared baking dish. Bake in the preheated oven until a toothpick inserted into the center comes out clean, 28 to 30 minutes. Sprinkle marshmallows over brownie and continue baking until slightly melted, about 3 minutes. Remove from oven and set aside to cool completely. Heat chocolate chips, peanut butter, and butter in a saucepan over low heat. Cook, stirring until smooth. Remove from heat and stir in rice cereal. Spread over brownies. Refrigerate until firm. Slice brownies to serve. I Made It Print 169 home cooks made it! Nutrition Facts (per serving) 265 Calories 15g Fat 32g Carbs 4g Protein Show Full Nutrition Label Hide Full Nutrition Label Nutrition Facts Servings Per Recipe 30 Calories 265 % Daily Value * Total Fat 15g 19% Saturated Fat 4g 22% Cholesterol 12mg 4% Sodium 127mg 6% Total Carbohydrate 32g 12% Dietary Fiber 2g 6% Total Sugars 13g Protein 4g 8% Vitamin C 1mg 1% Calcium 13mg 1% Iron 1mg 8% Potassium 143mg 3% * Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs. ** Nutrient information is not available for all ingredients. Amount is based on available nutrient data. (-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.