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Delish Peanut Butter Chocolate Chip Bars

Delish Peanut Butter Chocolate Chip Bars

Thick, soft-baked peanut butter cookie bars packed with melty chocolate chips. One bowl, no mixer, and ready in under an hour.
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Prep Time: 15 minutes
Cook Time: 25 minutes
Total Time: 40 minutes
Servings: 16
Calories: 120kcal

Ingredients
 

Main Ingredients

  • 0.5 cup unsalted butter, melted and slightly cooled
  • 0.75 cup creamy peanut butter
  • 0.75 cup light brown sugar, packed packed
  • 0.25 cup granulated sugar
  • 2 large eggs room temperature
  • 2 teaspoons pure vanilla extract
  • 1.5 cups all-purpose flour spooned and leveled
  • 1 teaspoon baking powder
  • 0.5 teaspoon kosher salt
  • 1.25 cups semisweet chocolate chips
  • 0.25 cup semisweet chocolate chips optional, for topping
  • 0.5 cup roasted peanuts, roughly chopped optional
  • 0.25 teaspoon flaky sea salt optional, for sprinkling

Instructions

Preparation Steps

  • Preheat oven to 350°F. Line an 8x8 inch baking pan with parchment paper, leaving overhang for easy lifting, and lightly grease.
  • In a large bowl, whisk melted butter, peanut butter, brown sugar, and granulated sugar until smooth and glossy.
  • Whisk in eggs and vanilla until fully combined.
  • In a separate bowl, whisk together flour, baking powder, and kosher salt. Add dry ingredients to the wet mixture and fold with a spatula just until no dry streaks remain.
  • Fold in 1.25 cups chocolate chips and the chopped peanuts if using. Spread batter evenly into the prepared pan. Sprinkle the remaining 0.25 cup chocolate chips on top and a pinch of flaky salt if desired.
  • Bake for 22 to 27 minutes, until the edges are golden and a toothpick inserted near the center comes out with a few moist crumbs (not wet batter).
  • Cool completely in the pan on a wire rack. Lift out using parchment, slice into 16 bars, and serve.
  • Store airtight at room temperature for up to 3 days or refrigerate for up to 1 week. Bars freeze well for up to 2 months.

Notes

For thicker, fudgier centers, pull the bars when the center is slightly underbaked and let them finish setting as they cool. Swap semisweet chips with milk or dark chocolate as preferred.