Peanut Butter and Chocolate Monster Cookie Bars

These crowd-pleasing monster cookie bars are full of ingredients like peanut butter, oats, chocolate chips, and candy-coated chocolate.

• Preparation Time: 10 mins
• Cooking Time: 15 mins
• Total Time: 25 mins
• Calories: 292 Calories

Ingredients

• 1 cup brown sugar
• 1 teaspoon vanilla extract
• 1 cup white sugar
• ½ cup butter
• 1 ½ cups peanut butter
• 3 eggs
• 2 teaspoons baking soda
• 1 ½ cups semisweet chocolate chips
• 1 ½ cups candy-coated milk chocolate pieces (such as M&M's®)
• 4 ½ cups rolled oats

Recipe Instructions

Step 1

Preheat oven to 350 degrees F (175 degrees C). Lightly grease a 10x15-inch baking pan.

Step 2

Cream white sugar, brown sugar, and butter together in a bowl. Mix in peanut butter and eggs until smooth. Stir in oats, baking soda, and vanilla extract. Add chocolate chips and milk chocolate pieces. Spread in the greased baking pan.

Step 3

Bake in the preheated oven until lightly brown on top, about 15 minutes. Be careful not to overbake.