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–+ servings
giant M&M studded monster cookies on plate
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📋Easy Monster Cookies

Here’s easy monster cookies recipe that makes thick, chewy on the edges with soft center cookies. Classic family favorite monster cookies are made with oats, peanut butter, chocolate chip and M&Ms. No chilling required!
Prep Time10 minutes
Cook Time20 minutes
Course: Cookies, Dessert
Cuisine: American
Servings: 15 cookies (large)
Calories: 287kcal

Ingredients

  • 1 stick ½ cup softened unsalted butter
  • ½ cup granulated white sugar
  • ½ cup light brown sugar
  • ¾ cup creamy peanut butter
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 1 ¼ cups all-purpose flour
  • ½ teaspoon baking soda
  • ¼ teaspoon salt
  • ½ teaspoon ground cinnamon
  • ½ cup quick oats I used rolled oats for it’s lovely texture
  • ¾ cup semi-sweet chocolate chips
  • ¾ cup mini M&M’s

Instructions

  • Pre-heat oven at 350F.
  • Line baking tray with parchment paper or silicon mat.
  • Everything should be at room temperature for this recipe like eggs and butter. Make sure butter in softened. Leave butter at room temperature for 15 minutes to 30 minutes. Cold ingredients don’t combine very well.
  • Use stand mixer or hand mixer to make cookie dough.
  • Into a large bowl add softened unsalted butter, granulated sugar and light brown sugar.
  • Beat until creamy.
  • Add creamy peanut butter, beat to combine. Do not over beat.
  • Crack egg to the bowl, beat to combine.
  • Add vanilla extract, beat until just combined.
  • Add all-purpose flour, baking soda, salt and ground cinnamon.
  • Beat to combine. Scrape the sides of the bowl in between and continue mixing.
  • Once dough comes together using silicon spatula fold quick oats (note I used rolled oats), semi-sweet chocolate chips and mini M&M’s.
    Tip: cookie dough should be non-sticky and easy to handle. If dough is very soft and sticks to the hand, cover with dough with cling film and chill in refrigerator for 30 minutes.
  • Scoop 2 tablespoons of dough mix and place on baking tray lined with parchment paper or silicon mat.
  • Lightly roll the dough into even shaped balls.
  • Place extra M&M’s on top for look. This step is optional.
  • Lightly press down the balls to flatten a bit.
  • Bake in pre-heated oven at 350F for about 11-13 minutes.
  • You don’t want cookie to brown. When cookies come out of the oven it will looks still soft.
  • Let cookies cool on the tray for 10 minutes.
  • Carefully transfer to wire rack and cool completely.
  • Cookies will firm as they cool.
  • Serve monster cookies right away or store in air tight containers at room temperature for about a week.

Video

Notes

  1. All ingredients including egg should be at room temperature.
  2. Make sure butter in softened. Leave butter at room temperature for 15 minutes to 30 minutes.
  3. While measuring flour, don’t press to pack it. Spoon it into measuring cup and level it off using flat side of the spoon. Too much flour will make drier/harder cookies.
  4. For best results use creamy peanut butter. I do not recommend natural peanut butter or chunky peanut butter. It will make dough crumbly and cookies will turn dry.
  5. Use quick oats. Quick oats are finely cut oats and blends into dough easily and will give more uniform texture cookies. Whereas rolled oats adds beautiful texture to the cookies. You can use a mix of quick oats and rolled oats in the recipe or just roll cookies balls in rolled oats for pretty look.
  6. Do not over beat cookie dough after each ingredient is added. Beat just to combine. Over worked dough will result in hard cookies.
  7. Scrape sides and bottom of the bowl so all ingredients are mixed uniform.
  8. Adjust baking time. Depending on your oven and how you want your cookies, baking time needs to be adjusted. Monster cookies best taste when they are soft and chewy. When cookies come out of the oven it will looks still soft.
 
Nutrition values mentioned are for 1 large cookie. This recipe makes approximately 15 large sized monster cookies.
 
Nutritional Info – Please keep in mind that nutritional information provided is only a rough estimate and can vary greatly based on products used.

Nutrition

Calories: 287kcal | Carbohydrates: 38g | Protein: 6g | Fat: 13g | Saturated Fat: 5g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 4g | Trans Fat: 1g | Cholesterol: 13mg | Sodium: 150mg | Potassium: 170mg | Fiber: 2g | Sugar: 25g | Vitamin A: 46IU | Vitamin C: 1mg | Calcium: 35mg | Iron: 2mg