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Peanut Butter Blondies with Reese’s Pieces and Chocolate Chips Recipe

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★★★★★

5 from 141 reviews

Deliciously rich and chewy Peanut Butter Blondies packed with the creamy flavor of peanut butter, sweet light brown sugar, and studded with Reese’s Pieces and chocolate chips for a perfect combination of textures and flavors. These blondies bake to a golden top with a gooey center, ideal for peanut butter lovers craving a luscious dessert bar.

Ingredients

Scale

Wet Ingredients

  • 2/3 cup unsalted butter (170 grams)
  • 3/4 cup peanut butter (about 270 grams)
  • 3 large eggs
  • 2 teaspoons vanilla extract

Dry Ingredients

  • 2 cups all-purpose flour (250 grams)
  • 2 cups light brown sugar (420 grams)
  • 1/4 teaspoon salt

Add-ins

  • 3/4 cup Reese’s Pieces (about 140 grams)
  • 3/4 cup chocolate chips (about 120 grams)

Instructions

  1. Preheat and Prepare Pan: Preheat your oven to 350°F (180°C). Line a 9×13 inch baking pan with parchment paper, leaving an overhang on the sides for easy removal, or lightly grease the pan if you don’t have parchment.
  2. Melt Butter and Peanut Butter: In a large microwave-safe bowl, melt the unsalted butter and peanut butter together. Stir occasionally until the mixture is smooth and creamy.
  3. Combine Sugar and Eggs: Whisk the light brown sugar into the melted peanut butter mixture until fully combined. Then whisk in the eggs and vanilla extract, mixing until no egg pieces remain visible.
  4. Add Dry Ingredients: Gently fold in the all-purpose flour and salt to the wet mixture, being careful not to overmix. Stop once there are no visible flour streaks or lumps.
  5. Fold in Reese’s Pieces and Chocolate Chips: Carefully fold the Reese’s Pieces and chocolate chips into the batter, ensuring even distribution without overmixing.
  6. Transfer and Smooth Batter: Spoon or pour the batter into the prepared baking pan and spread the top evenly and smoothly with a spatula.
  7. Bake Blondies: Bake in the preheated oven for about 30 minutes, or until the top looks set and a toothpick inserted into the center comes out clean or with a few damp crumbs. For firmer blondies, bake up to 35 minutes as per preference.
  8. Cool and Slice: Allow the blondies to cool in the pan. Once cooled, lift the bars out using the parchment overhang, place on a cutting board, and slice with a thin, sharp knife. Bars can be cooled about 2 1/2 hours; note that the chocolate chips and Reese’s Pieces may remain melty even after cooling.

Notes

  • Using parchment paper with an overhang makes it easier to lift the blondies out of the pan for slicing.
  • Do not overmix the batter after adding flour to keep blondies tender.
  • Baking time can be adjusted based on texture preference: less time for gooey centers, more time for firmer bars.
  • For a richer peanut butter flavor, use creamy peanut butter but natural peanut butter can be substituted for a less sweet option.
  • Store blondies tightly covered at room temperature for up to 4 days or refrigerate for longer freshness.

Keywords: Peanut Butter Blondies, Reese's Pieces, Chocolate Chip Blondies, Dessert Bars, Peanut Butter Dessert

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