Brown Butter Blondies With Peanut Butter Swirl

Thursday, May 14, 2015
Brown Butter Blondies With Peanut Butter Swirl

I couldn't decide last week chocolate chip or peanut butter, cookies or bars.
So I went with Brown Butter Blondies With Peanut Butter Swirl because anything with peanut butter swirl is eternally life changing in my book.
These bars have everything I love in a dessert.
A thick chewy chocolate chip bar with swirls of peanut butter deliciousness that make for a gorgeous presentation without much effort.
We couldn't keep our hands out of the pan.
We may or may not have eaten over half the pan before Colt could take a few finished photos but just for the record part of that was due to running out of parchment paper.
Sometimes things happen and my kids usually aren't super excited to wait an extra day to enjoy dessert just for a picture so sometimes I compromise.
Sometimes I'm on top of my game and I hide dessert until I have finished photos but that didn't happen on this occasion because the kids could smell these Brown Butter Blondies With Peanut Butter Swirl before they even entered the house.
Be warned these don't last long!
In a small skillet brown 1 cup Butter, swirl pan to promote even browning.
Add brown butter to mixing bowl and add 1/4 cup Cubed Cold Butter.
Mix on low speed until butter is melted.
Using a whisk attachment add 3/4 cup Granulated Sugar, 1 1/4 cup brown sugar, 1 tablespoon Vanilla and 3/4 teaspoon Sea Salt. Beat mixture until sugar is dissolved.Brown-Butter-Blondies-With-Peanut-Butter-Swirl-Egg-Yolk.jpg
Beat 2 whole Eggs and 2 Egg Yolks together. Add egg mixture to butter/sugar mixture and beat on high speed for 30 seconds. Allow mixture to rest for 3 minutes.
Repeat mixing for 30 seconds and resting for 3 minutes until batter become thick and yellow.Brown-Butter-Blondies-With-Peanut-Butter-Swirl-Baking-Soda.jpg
Add 3/4 teaspoons baking soda and beat on high speed another 30 seconds. Allow mixture to rest 3 minutes.Brown-Butter-Blondies-With-Peanut-Butter-Swirl-Chocolate-Chips.jpg
On low speed mix in 2 3/4 cups all-purpose or whole wheat pastry flour until combined. Add chocolate chips and stir until well incorporated.Brown-Butter-Blondies-With-Peanut-Butter-Swirl-Powdered-Sugar.jpg
In a small bowl stir together 3/4 cup Peanut Butter, 2 tablespoons Powdered Sugar and 1/2 teaspoon Vanilla.
Stir until well combined.
Butter a 9"x13" pan and spread cookie dough evenly over bottom of pan.
I used a small cookie scoop and dropped peanut butter mixture in 12 equally spaced mounds but 2 spoons would work also.
Run a knife in a long S shape going the length of the pan and then repeat going the width of the pan to form peanut butter swirl.
Bake in a 350 degree oven for 27-30 minutes until edges are brown but center is still slightly loose.
Cool completely before serving.
Brown Butter Blondies With Peanut Butter Swirl are easy to make and sure to become a new found favorite!
Brown Butter adds a delicious nuttiness to these bars that leaves the house smelling intoxicating and pairs perfectly with the peanut butter swirl.
Brown Butter Blondies With Peanut Butter Swirl are the best of both worlds!
If you love peanut butter and chocolate chip cookies as much as we do I know you'll love these too!

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Brown Butter Blondies With Peanut Butter Swirl

Recipe by Serena Bakes Simply From Scratch

Chewy Brown Butter Blondies meets Peanut Butter Swirl for an easy to make ultimate dessert.
Prep time: PT15M
Cook time: PT27M
Total time: PT42M
Yield: 16 Servings
  • 1 1/4 cups Cold Butter Plus More For Greasing Pan
  • 3/4 cup Granulated Sugar
  • 1 1/4 cups Brown Sugar
  • 1 tablespoon Pure Vanilla Extract
  • 3/4 teaspoon Sea Salt
  • 2 whole Eggs
  • 2 whole Egg Yolks
  • 3/4 teaspoon Baking Soda
  • 2 3/4 cup All-Purpose or Whole Wheat Pastry Flour
  • 2 cups Semi Sweet Chocolate Chips
  • 3/4 cup Peanut Butter
  • 2 tablespoons Powdered Sugar
  • 1/2 teaspoon Pure Vanilla Extract
Cooking Directions
  1. Preheat oven to 350 degrees.
  2. Butter a 9"x13" pan and set aside.
  3. In a small saucepan cook 1 cup butter until brown and nutty smelling. Swirl pan as needed to encourage even browning of butter.
  4. Add butter to a mixing bowl and add remaining 1/4 cup butter cut into 1 tablespoon sized pieces. Mix until butter is melted.
  5. Add both sugars, vanilla and salt. Using a whisk attachment beat until blended.
  6. Beat together eggs and egg yolks. Slowly pour egg mixture into sugar mixture. Beat on high speed for 30 seconds. Allow mixture to rest for 3 minutes.
  7. Repeat beating mixture for 30 seconds and resting for 3 minutes until mixture becomes thick and pale.
  8. Add baking soda and mix for 30 seconds on high. Scrape down the sides of bowl. Allow mixture to rest 3 minutes.
  9. Add flour and mix on low speed until combined.
  10. Stir in chocolate chips and spread evenly in prepared pan.
  11. In a small bowl stir together peanut butter, powdered sugar and remaining 1/2 teaspoon vanilla until well combined.
  12. Drop peanut butter mixture evenly into 12 mounds over the top of blondie dough.
  13. Use a knife and make long S shapes going the length and width of the pan to swirl in peanut butter.
  14. Bake for 27-30 minutes until lightly brown around the edges but center is still loose.
  15. Cool completely before cutting and serving.
Brown Butter Blondies with Peanut Butter Swirl


  1. These look absolutely wonderful! I can only imagine what a wonderful aroma fills the house when these are baked...I'm sure they would not last long at all!

  2. Wow, those looks so very good, love all the peanut butter!

  3. I think I like blondies better than brownies. These look incredible!!!!

  4. These looks so tempting. Amazing blondies.


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