Monster Cookie Bars
These Monster Cookie Bars are thick, chewy, ultra ooey-gooey, and packed with peanut butter, oats, M&Ms, and three types of chocolate!
Servings: 24 bars
Calories: 333kcal
Ingredients
- ½ cup unsalted butter melted
- 1 cup dark brown sugar packed
- 1 cup granulated sugar
- 2 cups creamy peanut butter
- 3 large eggs
- 1 tablespoon vanilla extract
- 4 cups old fashioned oats certified gluten free if necessary
- 2 teaspoons baking soda
- 1 teaspoon salt
- 1 cup M&M’s plus more for topping
- 1 cup additional mix-ins plus more for topping (I used equal parts butterscotch chips, chocolate chunks, chocolate chips, and white chocolate chips)
Instructions
- Preheat oven to 350 degrees F and grease a 9x13 inch baking dish with cooking spray, then line it with a parchment paper sling.
- In the bowl of your stand mixer, beat together melted butter, brown sugar, and granulated sugar until fluffy.
- Beat in peanut butter, eggs, and vanilla until combined.
- Add in oats, baking soda, and salt, then beat again until incorporated.
- Beat in M&Ms and additional mix-ins (butterscotch chips, chocolate chunks/chips, white chocolate chips, etc.).
- Pour into prepared pan, then use your hands to press the mixture into an even layer.
- Press in extra toppings, if desired (this makes it look pretty).
- Bake in preheated oven for 30-40 minutes or until an inserted toothpick comes out basically clean.
- Cool completely before removing from the pan, slicing, and serving!
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Nutrition
Serving: 1bar | Calories: 333kcal | Carbohydrates: 37g | Protein: 8g | Fat: 18g | Saturated Fat: 6g | Trans Fat: 1g | Cholesterol: 35mg | Sodium: 306mg | Potassium: 211mg | Fiber: 3g | Sugar: 25g | Vitamin A: 171IU | Vitamin C: 1mg | Calcium: 39mg | Iron: 1mg
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