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A stack of three baked Peanut Butter Blondies with chocolate chips and candy pieces, surrounded by scattered candies on parchment paper.

Peanut Butter Blondies

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Indulge in rich, soft, peanut butter blondies loaded with your favorite mix-ins, perfect for a cozy treat or sharing with friends.
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Prep Time 10 minutes
Cook Time 30 minutes
cooling time 5 minutes
Total Time 45 minutes
Servings: 18
Course: Dessert, Snack
Cuisine: American, Baking
Calories: 250
Ingredients Method Nutrition Notes

Ingredients
  

  • ¾ cup 170 g unsalted butter (melted and slightly cooled)
  • 2 cups 400 g packed light or dark brown sugar (for sweetness and moisture)
  • ¾ cup 190 g creamy peanut butter (smooth processed for soft texture)
  • 2 large eggs room temperature for even mixing
  • 1 large egg yolk extra richness
  • 1 tablespoon 15 ml pure vanilla extract (for flavor depth)
  • 2 cups 250 g all-purpose flour (spooned & leveled)
  • 1 teaspoon 5 g baking powder (for slight rise)
  • 1 teaspoon 5 g salt (enhances flavor)
  • 1 ¼ cups 260 g Reese’s Pieces (or substitute with chocolate/peanut butter chips or M&Ms)

Method
 

  1. Preheat your oven to 350°F (177°C) and adjust the rack to the center. Line a 9×13-inch pan with parchment paper, leaving an overhang for easy removal.
  2. In a large mixing bowl, whisk together the melted butter and brown sugar until smooth and combined.
  3. Add the creamy peanut butter to the bowl, then whisk in the eggs, egg yolk, and vanilla extract until the mixture is uniform.
  4. Fold in the flour, baking powder, and salt gently using a rubber spatula until fully incorporated; the batter will be thick.
  5. Carefully fold in the Reese’s Pieces (or chosen mix-ins) until evenly distributed, leaving a few for sprinkling on top.
  6. Spread the batter evenly in the prepared pan, smoothing the top with a spatula.
  7. Bake for 30 minutes, then check doneness by inserting a toothpick into the center; it should come out with a few moist crumbs but no wet batter. Continue checking every 2 minutes if needed.
  8. Allow the blondies to cool completely in the pan on a wire rack before lifting out with the parchment overhang and cutting into squares.
  9. Store leftover blondies in an airtight container at room temperature for up to 1 week, or freeze for up to 3 months.

Nutrition

Serving: 60gCalories: 250kcalCarbohydrates: 32gProtein: 5gFat: 12gSaturated Fat: 6gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gCholesterol: 45mgSodium: 150mgPotassium: 150mgFiber: 1gSugar: 22gVitamin A: 200IUCalcium: 20mgIron: 1mg

Notes

These peanut butter blondies are soft, sweet, and packed with flavor. They bring warm nostalgia and are perfect for sharing with loved ones or enjoying with a cup of coffee.

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