Monster Cookie Bars
These Monster Cookie Bars are the ultimate treat for anyone who loves a delicious blend of textures and flavors, featuring gooey chocolate chips, crunchy M&Ms, and rich peanut butter.
Servings: 12 servings
Calories: 250kcal
Ingredients
Dry Ingredients
- 2 cups all-purpose flour
- 1.25 teaspoons salt
- 0.5 teaspoon baking soda
- 1.75 cups rolled oats
Wet Ingredients
- 1 cup unsalted butter at room temperature
- 1 cup creamy peanut butter
- 2 cups light brown sugar not packed
- 2 large eggs at room temperature
- 0.5 tablespoon vanilla extract
Mix-ins
- 1 cup mini semi-sweet chocolate chips
- 2 cups mini M&Ms divided
Instructions
- Step 1: Preheat your oven to 350°F (175°C).
- Step 2: Grease a 9×13 inch baking dish with cooking spray or line it with parchment paper.
- Step 3: In a large mixing bowl, whisk together the all-purpose flour, salt, and baking soda.
- Step 4: Add the rolled oats to the dry ingredients and mix until fully combined.
- Step 5: In a separate bowl, combine the unsalted butter and creamy peanut butter. Beat until smooth, then gradually add in the light brown sugar.
- Step 6: Beat in the eggs one at a time, then mix in the vanilla extract.
- Step 7: Gradually mix the dry ingredients into the wet mixture until just combined.
- Step 8: Gently fold in the mini semi-sweet chocolate chips and 1 cup of mini M&Ms.
- Step 9: Pour the cookie dough into the prepared baking dish and sprinkle the remaining 1 cup of mini M&Ms on top.
- Step 10: Bake for 20-25 minutes until golden brown around the edges and firm in the center. Let cool before cutting.
Equipment
- Mixing Bowl
- Baking Dish
- Hand Mixer
Notes
For extra flavor, try using crunchy peanut butter instead of creamy. Store leftovers in an airtight container.