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Peanut Butter Chocolate Chip Cookie Bars

Buttery peanut butter cookie bars loaded with chocolate and peanut butter chips for an indulgent, easy dessert.
Prep Time10 minutes
Cook Time20 minutes
Total Time30 minutes
Servings: 32 bars

Ingredients

  • 1.5 cups all-purpose flour (187.5 g)
  • 1/2 teaspoon baking soda (0.5 teaspoon)
  • 1/4 teaspoon salt (0.25 teaspoon)
  • 3/4 cup light brown sugar (165 g)
  • 3/4 cup creamy peanut butter (193.5 g)
  • 1/2 cup unsalted butter at room temperature (113.5 g)
  • 1/2 cup granulated sugar (100 g)
  • 1 egg
  • 1 teaspoon vanilla extract
  • 1 cup semisweet chocolate chips (180 g)
  • 1 cup peanut butter chips (170 g)

Instructions

  • Preheat the oven to 350°F (175°C). Grease a 9x13-inch baking pan and set aside.
  • Whisk the all-purpose flour, baking soda, and salt together in a small bowl until combined; set aside.
  • In the bowl of an electric mixer, cream together the light brown sugar, creamy peanut butter, unsalted butter, and granulated sugar on medium speed until light and creamy, about 2–3 minutes.
  • Add the egg and vanilla extract to the creamed mixture and beat until incorporated.
  • Reduce the mixer speed to low and add the dry ingredients, mixing only until the flour is just incorporated; do not overmix.
  • Fold in the semisweet chocolate chips and peanut butter chips with a rubber spatula until evenly distributed.
  • Transfer the dough to the prepared pan and press into an even layer.
  • Bake for 16–20 minutes, or until the center is set and the edges are lightly golden.
  • Cool completely in the pan on a wire rack, then cut into 32 bars.

Equipment

  • 9x13 inch Baking Pan
  • electric mixer (stand or hand-held)
  • Mixing bowls
  • rubber spatula
  • Measuring cups and spoons
  • wire cooling rack

Notes

  • Make sure butter is at room temperature for easier creaming.
  • Do not overmix once the flour is added to keep bars tender.
  • Press the dough evenly in the pan for uniform baking.