Description
Monster Cookie Bars are soft and chewy peanut butter oatmeal cookie bars loaded with chocolate chips and colorful M&M’s. A delightful treat that combines all your favorite flavors in one convenient pan.
Ingredients
Dry Ingredients:
- 2 cups all-purpose flour, spooned and leveled
- 2 cups old-fashioned oats
- 1 teaspoon baking soda
- 1 teaspoon sea salt
Wet Ingredients:
- 1 cup unsalted butter, at room temperature
- 1 cup creamy peanut butter
- 1 1/2 cups packed light brown sugar
- 1/2 cup granulated sugar
- 2 large eggs
- 1 tablespoon vanilla extract
- 1 1/4 cups semi-sweet chocolate chips
- 1 1/2 cups M&M’s, divided
- Flaky sea salt, for sprinkling on bars
Instructions
- Preheat oven and prepare pan: Preheat oven to 350 degrees F. Grease a 9×13-inch pan generously with nonstick cooking spray.
- Mix dry ingredients: In a large bowl, whisk together the flour, oats, baking soda, and salt. Set aside.
- Cream butter and sugars: In the bowl of a stand mixer, cream the butter, peanut butter, and sugars until smooth. Add eggs and vanilla, mix until combined.
- Combine wet and dry ingredients: Add the dry ingredients to the wet mixture and mix until just combined. Stir in chocolate chips and 1 cup of M&M’s.
- Bake: Spread the mixture into the prepared pan. Top with remaining M&M’s. Bake for 25-35 minutes until lightly golden brown. Sprinkle with flaky sea salt. Let cool, then cut into bars and serve.
Notes
- If you want to make the dough in advance, you can chill it for up to 48 hours. Chilling will also soften the oats.
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 bar
- Calories: 389 kcal
- Sugar: 30g
- Sodium: 212mg
- Fat: 21g
- Saturated Fat: 10g
- Unsaturated Fat: 8g
- Trans Fat: 1g
- Carbohydrates: 46g
- Fiber: 3g
- Protein: 6g
- Cholesterol: 36mg
