Halloween Monster Cookies

Halloween Monster Cookies are festive, sweet oatmeal chocolate chip cookies that are ghoulishly delicious and so simple to make with plenty of chocolate, peanut butter, Halloween M&M's, and fun, goofy candy eyes.

Prep Time10

Cook Time10

Total Time20

Servings: servings

Calories: 252kcal

Author: Stephanie Wilson

Ingredients

1 cup unsalted butter softened
¾ cup light brown sugar packed
½ cup granulated sugar
2 large eggs
1 cup peanut butter smooth or chunky
2 teaspoons vanilla extract
1 ½ cups all-purpose flour
1 teaspoon baking soda
1 teaspoon baking powder
1 teaspoon salt
2 cups oats old fashioned or quick oats
1 cup Halloween M&Ms
1 cup chocolate chips
Candy eyes optional

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Instructions

Preheat the oven to 350°F. Line baking sheets with parchment paper and set aside.
In the bowl of a stand mixer fitted with the paddle attachment, cream together the butter, brown sugar, and granulated sugar until light and fluffy. Beat in the eggs, one at a time, and then beat in the peanut butter and vanilla until well combined.
Combine the flour, baking powder, baking soda, and salt; add to the mixer and mix until combined. With the mixer on low, add the oats until combined, then mix in the M&Ms and chocolate chips. I like to reserve some M&Ms to add to press into the cookies before they're completely baked.
Scoop mounds of cookie dough onto prepared baking sheets at least 2 inches apart. Bake for 8 to 10 minutes, or until light golden brown.
Remove from the oven and let sit on the baking sheet for a few minutes before transferring to a wire rack to cool. while the cookies are still warm, I like to press a few more M&Ms into the cookies and add the candy eyes too.

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