Peanut Butter Frosted Blondies

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Peanut Butter Frosted Blondies

Prep Time: 15 minutes
Bake Time: 25–30 minutes
Total Time: 45 minutes
Servings: 16 bars

Ingredients

For the Blondies

  • 2 cups (250 g) all-purpose flour
  • 1½ teaspoons baking powder
  • ½ teaspoon salt
  • ½ cup (115 g) unsalted butter, melted
  • 1 cup (200 g) granulated sugar
  • ½ cup (130 g) creamy peanut butter
  • 2 large eggs
  • 2 teaspoons vanilla extract
  • ¼ cup (60 ml) milk

For the Peanut Butter Frosting

  • ½ cup (115 g) unsalted butter, softened
  • 1 cup (260 g) creamy peanut butter
  • 2½ cups (300 g) powdered sugar
  • 3–4 tablespoons milk
  • 1 teaspoon vanilla extract
  • Pinch of salt

Instructions

Step 1: Prepare the Pan

  1. Preheat the oven to 350°F (175°C).
  2. Grease or line a 9×13-inch baking pan with parchment paper.

Step 2: Make the Blondie Batter

  1. In a medium bowl, whisk together the flour, baking powder, and salt.
  2. In a large mixing bowl, combine the melted butter, granulated sugar, and peanut butter until smooth.
  3. Beat in the eggs one at a time.
  4. Stir in the vanilla extract and milk.
  5. Gradually add the dry ingredients and mix until just combined. Do not overmix.

Step 3: Bake

  1. Spread the batter evenly into the prepared baking pan.
  2. Bake for 25–30 minutes, or until the edges are lightly golden and a toothpick inserted into the center comes out with a few moist crumbs.
  3. Allow the blondies to cool completely before frosting.

Step 4: Make the Frosting

  1. Beat the softened butter until creamy.
  2. Add the peanut butter and mix until smooth.
  3. Gradually beat in the powdered sugar.
  4. Add the vanilla extract, salt, and milk a little at a time until the frosting is smooth and spreadable.

Step 5: Frost and Serve

  1. Spread the peanut butter frosting evenly over the cooled blondies.
  2. Use an offset spatula or the back of a spoon to create decorative swirls.
  3. Chill for 20 minutes for cleaner slices.
  4. Cut into 16 squares and serve.

Tips

  • Use room-temperature eggs for a smoother batter.
  • Do not overbake to keep the blondies soft and chewy.
  • Refrigerate before slicing for neat, bakery-style bars.
  • Store leftovers in an airtight container for up to 5 days.

Frequently Asked Questions

Can I use crunchy peanut butter?
Yes! It adds a delicious crunchy texture.

Can I freeze these blondies?
Absolutely. Freeze in an airtight container for up to 2 months. Thaw in the refrigerator before serving.

Can I add chocolate chips?
Yes. Fold 1 cup of chocolate chips into the batter for an extra indulgent treat.

Approximate Nutrition (Per Bar)

  • Calories: 340
  • Carbohydrates: 36 g
  • Protein: 7 g
  • Fat: 20 g
  • Saturated Fat: 8 g
  • Sugar: 24 g
  • Fiber: 2 g
  • Sodium: 170 mg

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