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4.5 from 255 votes

Monster Cookie Bars

This delightful recipe is easy to follow and perfect for any occasion.

Prep Time
15 mins
Cook Time
15 mins
Total Time
40 mins
Servings: 24 Bars (9X13-inch pan)
Course: Dessert
Cuisine: American

Ingredients

  • 2 large eggs
  • ⅔ cup granulated sugar
  • ⅔ cup packed light brown sugar
  • ¼ teaspoon salt
  • 1 teaspoon vanilla extract
  • 1 cup creamy peanut butter
  • ⅓ cup salted butter softened to room temperature
  • 1 ½ cups chocolate chips
  • 1 teaspoon baking soda
  • 3 cups quick oats
  • 1 cup M&M's

Instructions

    Cup of Yum
  1. Preheat the oven to 350 degrees F. Grease a 9X13-inch baking pan with cooking spray.
  2. In a large mixing bowl, combine the eggs and sugars. Mix well. Add the salt, vanilla, peanut butter and butter. Mix until creamy and well combined. Stir in the chocolate chips, baking soda and oatmeal. Mix well.
  3. Spread the batter into the prepared pan and press lightly into an even layer. Sprinkle the M&M's evenly across the top and gently press them into the dough.
  4. Bake for 20-25 minutes until the edges are golden and set. Let the bars cool completely in the pan. For a cleaner cut, refrigerate the bars before slicing and serving.

Notes

  • M&M's: it's normal for some of the M&M's to crack while baking. If you want to avoid that, you can add them to the top after you take the bars out of the oven but they won't sink into the top quite as well.

Nutrition Information

Serving 1 Bar Calories 254kcal (13%) Carbohydrates 31g (10%) Protein 5g (10%) Fat 13g (20%) Saturated Fat 6g (30%) Cholesterol 26mg (9%) Sodium 158mg (7%) Fiber 2g (8%) Sugar 22g (44%)

Nutrition Facts

Serving: 24Bars (9X13-inch pan)

Amount Per Serving

Calories

% Daily Value*

Serving 1 Bar
Calories 254kcal 13%
Carbohydrates 31g 10%
Protein 5g 10%
Fat 13g 20%
Saturated Fat 6g 30%
Cholesterol 26mg 9%
Sodium 158mg 7%
Fiber 2g 8%
Sugar 22g 44%

* Percent Daily Values are based on a 2,000 calorie diet.