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–+ servings
Halloween monster cookies on a plate.

Monster Cookies

Justin
Monster Cookies are a Halloween party staple for a reason — they're peanut butter oatmeal cookies loaded with chocolate chips and M&M's, and they're genuinely one of the better cookies you'll make regardless of the season. The Halloween version swaps in Halloween-colored M&M's and adds eyeball sprinkles pressed into the tops, which is enough to make them completely on-theme without changing anything about what makes them so good. They hit that perfect chewy-dense-salty-sweet combination every time.
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Prep Time 10 minutes
Cook Time 12 minutes
Total Time 22 minutes
Course Dessert
Servings 16 cookies
Calories 294 kcal

Ingredients
  

  • ½ c unsalted butter softened
  • ½ c creamy peanut butter
  • ¼ c sugar
  • 1 c brown sugar
  • 1 egg
  • 1 t vanilla
  • 1 c flour
  • 1 t baking sode
  • 1 & ¼ rolled oats
  • 1 c Halloween M&M candies
  • ½ c chocolate chips
  • 1 t eyeball sprinkles

Instructions
 

  • Preheat the oven to 350°F. Line baking sheets with parchment paper and set aside.
  • In the bowl of a stand mixer, combine the softened butter, peanut butter, sugar, and brown sugar. Cream until smooth and lighter in color.
  • Add the vanilla and egg and mix until combined, scraping down the sides often.
  • Add the flour, salt, and baking soda. Mix well, scraping the sides often.
  • Add the rolled oats and mix to combine.
  • Fold in the M&M's and chocolate chips until evenly distributed throughout the dough.
  • Using a large ice cream scoop, divide the cookie dough onto the baking sheets, leaving plenty of space between the cookies.
  • Press eyeball sprinkles firmly into the tops of each cookie.
  • Bake for 10–12 minutes or until the edges just begin to brown and centers are set. Allow to cool on the baking sheet before removing.

Notes

Store in an airtight container for up to 3 days at room temperature. Use creamy peanut butter, not natural-style. Do not overbake — cookies will look slightly underdone in the center when you pull them and will firm up as they cool. Press eyeball sprinkles firmly before baking so they don't roll off as the dough spreads.

Nutrition

Calories: 294kcalCarbohydrates: 36gProtein: 4gFat: 15gSaturated Fat: 8gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gTrans Fat: 0.3gCholesterol: 28mgSodium: 53mgPotassium: 110mgFiber: 1gSugar: 28gVitamin A: 224IUVitamin C: 0.1mgCalcium: 38mgIron: 1mg
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Nutrition information provided is just an estimate and may vary based on specific ingredients used.