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Salted Cookie Butter Blondies (Chewy and Moist!)

By // (Updated Sep 1, 2026) // 5 Comments

Jump to Recipe·5 from 2 reviews
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Easy blondies are filled with loads of Cookie Butter (or Biscoff Spread) and chocolate chips then a generous sprinkle of sea salt. These Salted Cookie Butter Blondies are sweet and salty. They make the perfect afternoon treat or homemade cookie present! Ready in just about 35 minutes

hand holding a cookie butter sea salt blondie to the camera

Featured Review

"Great recipe! The sweet and salty combo is spot on. Will definitely make again!"

Sarah
Jump to Recipe·5 from 2 reviews

At the beginning of the year, I made these Cookie Butter Sea Salt Chocolate Chip Cookies and they were deeeeelicious. Loved every single bite, I ate half the batch myself. And since then I have made them a few times, still eating half the batch!

You know where I am going, you saw the title, I made them into blondies. Because blondies are easy and I  LO LO LO LO VE them.. just like the Ashlee Simpson song. And these are probably one of my most favorite blondies ever so chewy, moist, chocolatey, sweet but salty, cookie butter-y, basically, I fell in love at first bite.

stack of cookie butter blondies on a wire rack on a light pink surface

The Sweet + Salty Dream Team

  • Cookie Butter: The star of the show! I mix some directly into the batter and swirl even more through the middle so you get plenty of cookie butter flavor throughout.
  • Egg + Egg Yolk: After testing countless cookies and bars I have found that adding an extra yolk for more richness and moisture, which helps give the blondies that chewy texture I love.
  • Chocolate: I like using a combination of milk and dark chocolate so you get plenty of melty chocolate without making the bars overly sweet.
  • Flaky Sea Salt: Don't be shy here! I love a generous sprinkle because that salty finish balances the sweet cookie butter and chocolate perfectly.

Baking is a science and to really achieve the best results I highly recommend investing in a kitchen scale. This OXO Kitchen Scale is the one I use and is also the number one recommended kitchen scale by Cook's Illustrated. Think about it -what one person scoops into a "cup" is completely different from what someone else scoops!

For ingredient quantities please reference the recipe card below. On the recipe card there is a button for US or M (Metric) measurements.

ingredients for cookie butter blondies in glass bowls on an light pink surface

Let's Make Blondie Magic

dry ingredients whisked together in a glass bowl on a light pink surface with a blue linen
In a medium bowl whisk together the flour, baking soda, baking powder, cornstarch, and salt.
melted butter and brown sugar in a glass bowl on a light pink surface with a blue linen
In a large bowl combine melted butter and sugar.
whole egg and egg yolk added to wet ingredients in a glass bol with a whisk on a light pink surface with a blue linen
Then mix in the egg and egg yolk, mix until fully incorporated.
cookie butter added to wet ingredients for blondies in a glass bowl with a whisk on a light pink surface with a blue linen
Mix in cookie butter, whisk until fully combined.
ie butter sea salt blondies on a light pink surface with a blue linen
Fold in the dry ingredients.
chocolate chips added to cookie butter blondie batter in a glass bowl on a light pink surface with a blue linen
Once almost combined mix in the chocolate chips.
cookie butter scooped and spread on to blondie batter on a light pink surface
Pour half of the batter into the prepared pan then scoop the remaining cookie butter on top.
cookie butter scooped and spread on to blondie batter on a light pink surface
Use a knife to swirl it around.
cookie butter sea salt blondies in a foil lined pan before baking on a light pink surface
Add the remaining cookie dough and spread it into an even layer. Then bake.
cookie butter blondies cooling on a wire rack on top of a blue linen on a light pink surface

Not gonna lie to you, one of these warmed up and served with a big scoop of vanilla ice cream is unreal. Here are some delicious bar recipes to try.

cookie butter blondies cut into squares on a white plate on top of a blue linen on a light pink surface

★★★★★ Please let me know if you make this recipe by leaving a star rating and comment below!

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Recipe Card

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hand holding a cookie butter sea salt blondie to the camera

Salted Cookie Butter Blondies (Chewy and Moist!)

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

5 from 2 reviews

Print Recipe

Easy blondies are filled with loads of Cookie Butter (or Biscoff Spread) and chocolate chips then a generous sprinkle of sea salt. These Salted Cookie Butter Blondies are sweet and salty. They make the perfect afternoon treat or homemade cookie present! Ready in just about 35 minutes

  • Total Time: 35 minutes
  • Yield: 9-16 Bars 1x

Ingredients

Units Scale
  • 4oz (½ Cup) Butter, melted
  • 200 grams (1 Cup) Light Brown Sugar
  • 1 Large Egg + 1 Large Egg Yolk, at room temperature
  • 4oz (½ Cup) Cookie Butter
  • 188 grams (1 ½ Cups) All-Purpose Flour
  • 1 Teaspoon Cornstarch
  • ½ Teaspoon Baking Soda
  • ½ Teaspoon Baking Powder
  • ½ Teaspoon Salt
  • 180 grams (1 Cup) Chocolate Chips or Chocolate Chunks
  • 2oz (¼ Cup) Cookie Butter
  • Sea Salt for garnish

Instructions

  1. Preheat oven to 350F/180C and line a square 8-inch baking pan with foil then spray with non-stick cooking spray.
  2. In a medium bowl whisk together the flour, baking soda, baking powder, cornstarch, and salt.
  3. In a large bowl combine melted butter and sugar. Then mix in the egg and egg yolk, mix until fully incorporated. Mix in cookie butter, whisk until fully combined.
  4. Then fold in the dry ingredients, once almost combined mix in the chocolate chips. Pour half of the batter into the prepared pan then scoop the remaining, 2oz (¼ cup) of cookie butter into the prepared pan and use a knife to swirl it around. I used my 0.5 tablespoon scoop. Add the remaining cookie dough and spread it into an even layer.
  5. Add sea salt in a heavy sprinkling on bake for 24-29 minutes until set and golden brown. If you insert a toothpick it should come out with no wet crumbs. Let cool for at least thirty minutes before slicing, store leftovers in an air-tight container. 

Equipment

  • Author: Elizabeth Waterson
  • Prep Time: 10
  • Cook Time: 25
  • Category: Dessert
  • Method: Bake
  • Cuisine: American
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    If you love this recipe, please consider leaving a ⭐ star rating ⭐ when you post a comment. Star ratings help people discover my recipes online. I am incredibly grateful for your support! —xx Liz

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  1. Felicia says

    I've made these before and loved them. So when I saw that Trader Joe's now sells Pumpkin Spice Cookie Butter I knew exactly what I had to do! I just made this recipe with the Pumpkin Cookie Butter last night and they were delicious! Definitely going to make another batch soon (and going to blog about it soon, too!)

    Reply

    • Elizabeth says

      Felicia that sounds amazing!!!! LOVE IT!!!!

      Reply

  2. Sarah says

    Great recipe! The sweet and salty combo is spot on. Will definitely make again!

    Reply

    • Elizabeth Waterson says

      Hi Sarah, thank you so much for sharing this with me, it truly makes my day to know you enjoyed the cookie bars. Yay! Happy New Year! XX Liz

      Reply

  3. Mary Jean Goodman says

    These were absolutely delicious! I made my own cookie butter and followed the recipe exactly. Thank you!

    Reply