Chewy Peanut Butter Bars

Chewy and sinful, a 3-ingredient cookie bar recipe.

20 min
Prep Time
0 min
Cook Time


  • One 1-pound package peanut butter sandwich cookies (i.e., Nutter Butters)
  • 5 cups large marshmallows
  • 4 tablespoons Crystal unsalted butter

Products used

  • Unsalted Butter


  • Step 1

    Place cookies in food processor and pulse until ground.
  • Step 2

    Melt marshmallows and butter in microwave until puffed, about 1½ - 2 minutes.

  • Step 3

    Remove, stir, and pour in ground cookies. 

  • Step 4

    Stir to combine then transfer to a parchment paper lined 8×8 inch baking pan. Let set up for 10 minutes. 
  • Step 5

    Remove bars out of pan with edges of parchment and cut into squares.