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A stack of four thick chocolate chip cookie bars sits on a white surface, with more cookie bars and crumbs scattered around them.
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5 from 1 vote

Easy Peanut Butter Cookie Bars Recipe

Turn peanut butter cookies into bars by pressing my best recipe into a pan. Add whatever mix-ins you like!
Prep Time20 minutes
Cook Time25 minutes
Total Time45 minutes
Course: Dessert
Cuisine: American
Servings: 24 bars
Author: Dorothy Kern
Cost: $8

Ingredients

  • ½ cup (113g) unsalted butter softened
  • ¾ cup (200g) peanut butter (creamy or crunchy, use a no-stir brand)
  • 1 cup (200g) packed brown sugar
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 1 tablespoon milk
  • ¼ teaspoon salt
  • 1 teaspoon baking soda
  • 1 ½ cups all purpose flour
  • 3 cups chocolate chips (or a mix of any add-ins you like)

Instructions

  • Preheat oven to 350°F. Line a 9x13” pan with foil and spray with nonstick cooking spray.
  • Beat butter and peanut butter until smooth with a hand or a stand mixer (fitted with the paddle attachment). Add brown sugar and cream until smooth.
  • Mix in egg, vanilla, milk, salt, and baking soda. Slowly stir in flour until combined, then chocolate chips or other mix-ins. Stir until combined.
  • Press the dough into the prepared pan. Bake for 20-25 minutes, or until the edges are golden brown. Cool completely before slicing into bars.
  • Store in an airtight container for up to 3 days or freeze for up to one month.

Notes

Make LOADED Peanut Butter Cookie Bars: use up to 3 cups of any kind of mix-ins you like!
  • Chips: chocolate, white chocolate, butterscotch, toffee bits
  • Nuts
  • Chopped Candy Bars
  • Chopped Oreos

Nutrition

Serving: 1serving | Calories: 258kcal | Carbohydrates: 31g | Protein: 5g | Fat: 13g | Saturated Fat: 7g | Trans Fat: 1g | Cholesterol: 20mg | Sodium: 149mg | Potassium: 94mg | Fiber: 1g | Sugar: 21g | Vitamin A: 146IU | Vitamin C: 1mg | Calcium: 27mg | Iron: 1mg

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