Small-batch Monster Cookie Bars
These small-batch monster cookie bars are a super simple one-bowl dessert that require zero flour. They’re big on peanut butter flavor and packed full of M&Ms and melty chocolate chips.
Servings 6 to 8 bars
Calories 381kcal
Equipment
- 1-pound loaf pan
Ingredients
- 3 tablespoons (42g) salted butter softened*
- 1/2 cup (132g) peanut butter creamy or chunky*
- 1/3 cup (67g) granulated sugar
- 1/3 cup (67g) brown sugar
- 1 large egg
- 1/2 teaspoon vanilla extract
- 1 1/2 cups (130g) quick/instant oats *
- 1/2 teaspoon baking soda
- 1/2 cup (85g) M&M’s plus more for topping
- 1/3 cup (56g) chocolate chips
Instructions
- Preheat your oven to 350°F. Lightly grease and line a loaf pan with parchment paper.
- In a medium bowl, combine softened butter, peanut butter, and granulated and brown sugars. Beat until well-combined and slightly lightened in color, about 1 minute.
- Add egg and vanilla and mix until well-combined.
- Add oats and sprinkle baking soda over the top. Mix until well combined.
- Add M&M’s and chocolate chips and use a wooden spoon or spatula to mix.
- Transfer mixture to prepared baking pan and press dough out into an even layer. Sprinkle a few extra M&M’s over the top if desired, and bake for 15 to 18 minutes, until the edges are lightly browned (the center will still look pale and slightly underdone). Do not overbake!
- Allow bars to cool in the pan for about 45 minutes so they can firm up before transferring to a cutting board and slicing.
- Serve and enjoy!
Notes
Store bars at room temperature in an airtight container for 3 to 4 days or freeze in a freezer bag for up to 2 months.
*If using unsalted butter, add 1/8 teaspoon of salt along with the oats and baking soda.
*These bars have not been tested with natural peanut butter.
*Old-fashioned/rolled oats may also be used.
Nutritional information is for 8 servings.
Nutrition
Serving: 1bar | Calories: 381kcal