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+ servings
Finished cookie bars with candy around them, and bite shots.
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Halloween Monster Cookie Bars


Course Dessert
Cuisine American
Prep Time 15 minutes
Cook Time 20 minutes
Total Time 35 minutes
Servings 16
Homemade soft-baked Halloween Monster Cookie Bars are the best Halloween treat to make for a classroom party or a sweet treat! Traditional monster cookie bars loaded with peanut butter, chocolate, oats, Halloween mix M&M's, and edible candy eyeballs.

Ingredients
  

  • 2 cups all-purpose flour
  • cups whole old-fashioned oats
  • 1 teaspoon baking soda
  • ¼ teaspoon salt
  • 1/2 cup (1 stick) butter softened
  • 1/2 cup creamy peanut butter
  • 1/2 cup granulated sugar
  • 1/2 cup packed light brown sugar
  • 2 large eggs
  • 2 teaspoons vanilla extract
  • 1 cup Ghoul's Mix Halloween M&M's
  • 1/2 cup chocolate chips
  • 1/2 cup peanut butter chips
  • candy eyeballs

Instructions

  • Preheat the oven to 350℉. Line a 9x9-inch square baking pan with parchment paper or spray with nonstick cooking spray. Set aside.
  • In a small mixing bowl whisk together the flour, oats, baking soda, and salt. Set aside.
    2 cups all-purpose flour, 1½ cups whole old-fashioned oats, 1 teaspoon baking soda, ¼ teaspoon salt
  • In a larger mixing bowl using an electric hand mixer, or use a stand mixer with the paddle attachment, beat the butter, peanut butter, granulated sugar, and light brown sugar on medium speed until light & fluffy.
    *Beat for at least 2 minute for the best fluffy texture and light color.
    1/2 cup (1 stick) butter, 1/2 cup creamy peanut butter, 1/2 cup granulated sugar, 1/2 cup packed light brown sugar
  • Scrape down the sides of the bowl with a rubber spatula and beat in the eggs and vanilla extract just until mixed in.
    2 large eggs, 2 teaspoons vanilla extract
  • Stir in the M&M's, chocolate chips, and peanut butter chips just until mixed in.
    * I recommend setting aside about 1/4 cup m&m's and some of the chocolate chips and peanut butter chips to decorate the tops of the bars with in the next step.
    1 cup Ghoul's Mix Halloween M&M's, 1/2 cup chocolate chips, 1/2 cup peanut butter chips
  • Press the cookie dough into the prepared pan and smooth the top with a spoon or spatula. If you reserved some of the candy and chocolate chips, gently press those into the top of the bars.
  • Bake for 20-25 minutes or until the edges have set and a toothpick inserted into the center comes out clean.
  • Remove the pan from the oven. While the bars are still warm, immediately press the candy eyeballs into the bars.
    *Allow the bars to cool completely, inside the pan, before cutting them. About 30 minutes to 1 hour.
    candy eyeballs

Notes

Don't Overmix the Cookie Dough : Just mix the dough together until no flour streaks remain in the dough. Don't mix anything beyond that or else the bars will turn out dry and dense. We want them nice & soft!
Whip Butters + Sugars : To help achieve soft-baked cookie bars it's important to really whip the butter and sugars for at least 2 minutes. You want the mixture to look fluffy, light, and much paler in color. This is why I always recommend using a stand mixer because you can let it whip the butter and sugars on it's own.
Halloween Candy : The recipe calls for 1 cup of candy but feel free to use any Halloween candy you want. Make sure they're about the same size of the m&m's, so chop the candy if needed. You can also use half m&m's + half chopped Reese's Bats or something like that
 

Nutrition

Calories: 341kcal | Carbohydrates: 44g | Protein: 6g | Fat: 16g | Saturated Fat: 8g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 4g | Trans Fat: 0.3g | Cholesterol: 41mg | Sodium: 207mg | Potassium: 126mg | Fiber: 2g | Sugar: 25g | Vitamin A: 248IU | Vitamin C: 0.1mg | Calcium: 40mg | Iron: 2mg

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