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Close-up view of Monster Cookie Bars with chocolate chips and M&Ms.
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Monster Cookie Bars

Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Servings 24 bars
Calories 350
Deliciously chewy and chocolatey cookie bars loaded with peanut butter and M&M's, perfect for satisfying sweet cravings.

Ingredients

Dough

  • 1/2 cup butter (softened)
  • 3 eggs eggs (beaten)
  • 1 cup white sugar
  • 1 teaspoon vanilla
  • 1 teaspoon corn syrup
  • 2 teaspoons baking soda
  • 1 cup brown sugar (packed)
  • 1.5 cups peanut butter
  • 4.5 cups quick oatmeal
  • 6 ounces chocolate chips
  • 6 ounces M&M's

Instructions 

  • Preheat oven to 350°F (175°C) and spray an 18x13 inch pan with non-stick spray.
  • Cream together butter, white sugar, and brown sugar. Add eggs, vanilla, corn syrup, and baking soda; mix until combined. Stir in peanut butter and oatmeal.
  • Fold in chocolate chips and spread mixture into prepared pan. Sprinkle M&M's on top and press gently.
  • Bake for 15 minutes until edges are golden. Cool before cutting into bars.

Notes

For softer bars, slightly underbake and let cool completely.
Calories: 350kcal
Cost: $15
Course: Dessert
Cuisine: American
Keyword: bars, cookie, peanut butter