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Oreo Blondies featured image

Brown Butter Oreo Blondies


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5 from 2 reviews

  • Author: Lisa Flinn
  • Total Time: 45 Minutes
  • Yield: 16 Pieces

Description

These Brown Butter Oreo Blondies are thick, fudgy and gooey! An irresistible and decadent treat perfect for any occasion!


Ingredients

  • 14 Tablespoons (197g) Unsalted Butter, browned
  • 1 1/4 Cup (250g) Dark or Light Brown Sugar, packed
  • 1 Large Egg + 1 Yolk, room temp
  • 2 Teaspoons Vanilla Paste or Extract
  • 1 1/2 Cups (190 grams) All-Purpose Flour
  • 1/2 Teaspoon Fine Sea Salt
  • 1/4 Teaspoon Baking Powder (optional)
  • 1 Cup (170 grams) Chocolate Chips or Chunks
  • 9 Oreo Cookies + more for the top, roughly chopped

Instructions

  1. Make the Brown Butter - In a light colored saucepan and over medium heat, add unsalted butter. Swirl the pan and keep the butter moving around constantly. Once completely melted, the butter will foam and sizzle and gradually start to brown and deepen in color. You'll notice a nutty aroma and tiny brown specks at the bottom of the pan. The whole process should take about 10 minutes. Be careful not to burn it.
  2. Combine Brown Butter & Brown Sugar - Once your butter is a done, quickly transfer to a large glass bowl. Make sure to scrape all the tiny brown bits at the bottom of the pan into the bowl. Then immediately add your brown and mix to combine. Allow to sit on the counter for 10 minutes.
  3. Prep Oven & Pan - Meanwhile, place a rack in the center of the oven and preheat it to 350ºF (176ºC). Prepare an 8x8 inch (20x20cm) square pan by buttering and lining with parchment paper, leaving an overhang for easy removal.
  4. Combine Wet Ingredients - Once the brown butter/sugar mixture has cooled to a luke warm, add 1 whole egg, 1 yolk and vanilla and whisk until well combined.
  5. Combine Dry Ingredients - Sift in the all-purpose flour, baking powder (if using) and salt; mix until there are very few flour streaks left. Do not overmix.
  6. Add Mix-Ins - Add Oreo cookie pieces, chocolate chips or chunks and gently fold in to the batter. 
  7. Transfer & Bake - Transfer to your prepared pan and add a few more cookie pieces and chocolate chips on top. Bake for 24 to 30 minutes. Do not overbake!
  8. Serve & Enjoy - Allow to cool completely at room temperature or in the fridge. Cut into 9 or 16 equal pieces and Enjoy!

Notes

Cutting Blondies - To get clean slices, make sure your blondies are completely cooled! Slice into the blondies and wipe down your knife after each cut.

Storage - Store in an airtight container on the counter for 3 to 4 days! Store in an airtight container in the fridge for about 1 week. Allow it to come to room temperature before serving or eat it straight out of the fridge. For the freezer, store cooled and sliced blondies in a freezer bag for up to 2 months. Allow to come to room temperature before serving.

  • Prep Time: 20 Minutes
  • Cook Time: 25 Minutes