Let's Get Cookin'

Monster Cookie Bars

Our favorite cookie made into a bar. Soft, chewy and peanut buttery – these Monster Cookie Bars are studded with chocolate chips and candy-coated pieces. They make for a delightful treat when you’re craving something sweet!

  • Author: Stacie Hassing
  • Prep Time: 15 min
  • Cook Time: 16 min
  • Total Time: 31 minutes
  • Yield: 20-24 bars 1x
  • Category: Treat
  • Method: Baking



  1. Preheat the oven to 350 degrees. Spray a 9×13 baking pan or dish with non-stick spray or line with parchment paper. 
  2. In a medium bowl combine all of the ingredients except for the candy-coated pieces and chocolate chips. If using a thicker peanut butter, heat slightly to achieve drizzly consistency. Stir to combine well. May use a standup mixer. 
  3. Gently fold in candy-coated pieces and chocolate chips. 
  4. Transfer dough to prepared 9×13 pan.
  5. Oil hands and spread dough out evenly into the pan. 
  6. Bake in the oven for 17-20 minutes or until lightly golden brown and center is set. Baking time will vary depending on if using a baking pan or glass dish. Start checking at the  15 minute mark. 
  7. For best results, cool completely before cutting into 20-24 bars. 
  8. Store in an airtight container for up to one week. May also freeze for later.


Bars hold together better after they are cooled. Like any cookie or bar they are pretty ooey gooey in the middle until after they cool for a bit.


  • Serving Size: 1 bar of 24
  • Calories: 210
  • Sugar: 12 g
  • Sodium: 150 mg
  • Fat: 12 g
  • Saturated Fat: 5 g
  • Carbohydrates: 22 g
  • Fiber: 3 g
  • Protein: 6 g