Monster Cookie Bars
Monster Cookie Bars are everything you could want - soft, chewy, extra thick and filled with peanut butter, oatmeal, chocolate chips and M&Ms. It's an easy cookie bar recipe that's faster than making a batch of cookies and impossible to resist.
Servings 24 squares
Calories 410kcal
Ingredients
- ⅔ cup butter softened
- ¾ cup brown sugar
- ½ cup white sugar
- ⅔ cup peanut butter
- 1 large eggs
- 2 teaspoons vanilla extract
- 1 cup all-purpose flour
- 1 teaspoon baking soda
- ¼ teaspoon salt
- 1 ½ cups old-fashioned oats
- ⅔ cup chocolate chips plus a few more for sprinkling on top
- ⅔ cup M&Ms plus a few more for sprinkling on top
Instructions
- Preheat the oven to 350F degrees. Line a 9x13 inch pan with parchment paper so there's a 1 to 2-inch overhang on all sides, or lightly grease.
- In a large bowl beat the butter, brown sugar & white sugar until combined.
- Mix in the peanut butter, egg & vanilla extract.
- Turn the mixer down to low speed and mix in the flour, baking soda & salt.
- Mix in the oats.
- Turn off the mixer and stir in the chocolate chips and M&Ms.
- Press the dough into the bottom of the prepared pan.
- Bake for 22-25 minutes, or until the tops look set and around the edges is starting to brown.
- Cool fully (at least 30 minutes) then cut into bars.
Notes
*Store in an airtight container at room temperature for up to 4 days.
Nutrition
Calories: 410kcal