Monster Cookie Bars

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Monster Cookie Bars are a new twist on the old favorite. Monster Cookies have been my family’s favorite cookie ever since I was a child.

We use my grandmother’s recipe and make a giant batch of cookies every year for our family’s camping trip. However, one year we simply ran out of time for our baking plans.

EASY Monster Cookie Bars (naturally gluten free) recipe by Barefeet In The Kitchen

I adjusted the recipe slightly and pressed the cookie dough into the bottom of a large baking sheet. In less time than it would have taken to bake a single tray of cookies, I had these bars cooling on the counter.

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Easy as can be and the bars were a huge hit with everyone that tried them.

I was expecting a fun treat to snack on over the weekend, but these bars came close to trumping the original Monster Cookies.

Slightly more gooey than the cookies and still crisp on top and bottom, this is one of the best bar cookies I’ve ever tasted.

Monster Cookie Bars (naturally gluten free!) recipe by Barefeet In The Kitchen

If you’ve been hanging out with me for long at all, you know my long for EASY desserts. Dessert Bars are a terrific way to feed a crowd.

Almond Joy Brownies are an impressive dessert when topped with Homemade Ice Cream and Hot Fudge Sauce.

Cinnamon Pecan Shortbread Bars are perfect with a cup of coffee and I love having them stashed in the freezer.

These Frosted Sugar Cookie Bars by Tastes of Lizzy T look amazing as well.

Check out all of the Gluten Free Dessert Recipes on this website!

Monster Cookie Bars are a crowd-pleasing cookie favorite!
  1. Preheat oven to 350 degrees. Beat together the butter and sugars. Add the eggs, vanilla, syrup, and baking soda.
  2. Stir in the peanut butter. Add the oats and stir again until well combined. Mix in the chocolate chips.
  3. Press the dough into the bottom of a large baking sheet, or jelly roll pan. Top with the m&ms and lightly press them into the dough.
  4. Bake for 16-17 minutes, until the bars are lightly browned and just past looking wet on top. They will not be firm, but they will set up as they cool. 

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Monster Cookie Bars {naturally gluten free recipe}

4.84 from 6 votes
Servings: 48 small bars

Ingredients 

  • 2/3 cup butter room temperature
  • 2 cups light brown sugar
  • 1 1/3 cups white sugar
  • 4 eggs
  • 1 1/2 teaspoons baking soda
  • 1 teaspoon vanilla extract
  • 1 tablespoon maple syrup
  • 2 cups crunchy peanut butter
  • 6 cups old fashioned oats
  • 1 cup semi-sweet chocolate chips
  • 1/2 cup m&m candies for topping

Instructions

  • Preheat oven to 350 degrees. Beat together the butter and sugars. Add the eggs, vanilla, syrup, and baking soda. Stir in the peanut butter. Add the oats and stir again until well combined. Mix in the chocolate chips.
  • Press the dough into the bottom of a large baking sheet, or jelly roll pan. Top with the m&ms and lightly press them into the dough. Bake for 16-17 minutes, until the bars are lightly browned and just past looking wet on top. They will not be firm, but they will set up as they cool. Enjoy!

Nutrition

Calories: 156kcal · Carbohydrates: 25g · Protein: 2g · Fat: 6g · Saturated Fat: 3g · Polyunsaturated Fat: 0.4g · Monounsaturated Fat: 1g · Trans Fat: 0.1g · Cholesterol: 21mg · Sodium: 65mg · Potassium: 77mg · Fiber: 1g · Sugar: 18g · Vitamin A: 105IU · Vitamin C: 0.01mg · Calcium: 21mg · Iron: 1mg
Tried this recipe?Mention @barefeetkitchen or tag #barefeetkitchen!

{originally published 7/24/14 – recipe notes and photos updated 1/15/21}

Monster Cookie Bars are a crowd favorite!

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Mary Younkin

Mary Younkin

Hi, I’m Mary. I’m the author, cook, photographer, and travel lover behind the scenes here at Barefeet In The Kitchen. I'm also the author of three cookbooks dedicated to making cooking from scratch as simple as possible.

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