Original Post: https://www.sweetandsavorybyshinee.com/monster-cookie-bars/
Monster Cookie Bars
Servings: 48 servings
Yields: 48 squares
Calories: 144kcal
Prepare these chocolate peanut butter monster cookie bars in just 30 minutes, without flour and using only one bowl!
Print Recipe
Ingredients
- 1 stick (113 g) unsalted butter at room temperature
- ¾ cup (150 g) brown sugar Note 1
- ¾ cup (150 g) granulated sugar
- 3 large eggs at room temperature
- 1 ½ cups (400 g) creamy peanut butter
- 1 teaspoon pure vanilla extract
- 4 ½ cups (400 g) old-fashioned rolled oats
- 2 teaspoons baking soda
- ¾ cup (120 g) semi-sweet chocolate chips
- 1 cup (200 g) M&Ms
Equipment
- stand mixer fitted with a paddle attachment
Instructions
- Preheat the oven to 350°F (177°C). Line a baker’s half baking sheet with a parchment paper. (You may use 9x13 baking pan as well for thicker bars.)
- In a mixing bowl with paddle attachment, cream butter, brown and granulated sugars on medium high speed until nice and fluffy, about 3 minutes.1 stick unsalted butter, ¾ cup brown sugar, ¾ cup granulated sugar
- Add eggs, peanut butter, and vanilla extract. Mix on medium high speed until well combined, about 2 minutes.3 large eggs, 1 ½ cups creamy peanut butter, 1 teaspoon pure vanilla extract
- Add rolled oats and baking soda and mix until well combined, another minute or so.4 ½ cups old-fashioned rolled oats, 2 teaspoons baking soda
- Stir in chocolate chips and M&Ms.¾ cup semi-sweet chocolate chips, 1 cup M&Ms
- Spread the mixture into an even layer in the prepared baking sheet.
- Bake for 15 minutes (18 minutes for 9x13 baking pan). Don’t overbake! Cool completely.
Notes
Note 1: Both light and dark brown sugar works.
Note 2: Feel free to use any other nut or seed butter such as almond butter, cashew butter, or sunflower butter to keep this recipe peanut-free.
Note 3: Look for oats that are certified gluten-free to keep this recipe gluten-free-friendly.
Note 4: Baker’s half baking sheet size is 17.9 x 12.9 x 1 inches.
Storing Tips:
- Store leftover monster cookie bars in an airtight container at room temperature for up to 1 week.
- Freeze your monster cookie bars for up to 3 months. Wrap each bar tightly in plastic wrap, and place them in a ziplock freezer bag.
- Thaw frozen bars at room temperature before serving.
- Store leftover monster cookie bars in an airtight container at room temperature for up to 1 week.
- Freeze your monster cookie bars for up to 3 months. Wrap each bar tightly in plastic wrap, and place them in a ziplock freezer bag.
- Thaw frozen bars at room temperature before serving.
Nutrition
Servings: 1 serving
Calories: 144kcal
Carbohydrates: 18g
Protein: 4g
Fat: 7g
Sugar: 11g
Sodium: 89mg