Recipes Desserts Cookies Bar Cookie Recipes Peanut Butter and Chocolate Monster Cookie Bars 5.0 (4) 4 Reviews 3 Photos My children and my husband love these monster cookie bars! Submitted by Tynisha Published on June 19, 2020 Save Rate Print Share Close Add Photo 3 Prep Time: 10 mins Cook Time: 15 mins Total Time: 25 mins Servings: 30 Yield: 30 cookies 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 cup white sugar 1 cup brown sugar ½ cup butter 1 ½ cups peanut butter 3 eggs 4 ½ cups rolled oats 2 teaspoons baking soda 1 teaspoon vanilla extract 1 ½ cups semisweet chocolate chips 1 ½ cups candy-coated milk chocolate pieces (such as M&M's®) Directions Preheat oven to 350 degrees F (175 degrees C). Lightly grease a 10x15-inch baking pan. Cream white sugar, brown sugar, and butter together in a bowl. Mix in peanut butter and eggs until smooth. Stir in oats, baking soda, and vanilla extract. Add chocolate chips and milk chocolate pieces. Spread in the greased baking pan. Bake in the preheated oven until lightly brown on top, about 15 minutes. Be careful not to overbake. I Made It Print Nutrition Facts (per serving) 292 Calories 16g Fat 35g Carbs 6g Protein Show Full Nutrition Label Hide Full Nutrition Label Nutrition Facts Servings Per Recipe 30 Calories 292 % Daily Value * Total Fat 16g 20% Saturated Fat 6g 32% Cholesterol 28mg 9% Sodium 181mg 8% Total Carbohydrate 35g 13% Dietary Fiber 3g 10% Total Sugars 24g Protein 6g 13% Vitamin C 0mg 0% Calcium 33mg 3% Iron 1mg 7% Potassium 200mg 4% * 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.