Biscoff Blondies: The Ultimate Chewy & Fudgy Recipe

By Sadie Caldwell

On March 10, 2026

A close-up shot of a single Biscoff blondie, highlighting its chewy texture and swirls of cookie butter.

Cuisine

American

Prep time

10 minutes

Cooking time

30 minutes

Total time

40 minutes

Servings

16 blondies

Get ready to meet your new favorite dessert. These Biscoff Blondies are the ultimate treat, boasting an irresistibly chewy texture, a rich, fudgy center, and the unmistakable caramelized spice of Lotus Biscoff. This recipe is incredibly simple to make, using just one bowl and delivering a warm, gooey, cookie-butter-infused bar that will have everyone asking for the recipe. If you’re a fan of Biscoff, these blondies are a non-negotiable must-try.

We’ve tested this recipe to perfection to ensure you get that perfect blondie texture—not too cakey, not too greasy, just pure, buttery, brown sugar bliss. The melted Biscoff spread swirled throughout creates pockets of pure joy, while the crushed Biscoff cookies on top add a delightful crunch. Let’s get baking!

Why You’ll Love This Biscoff Blondies Recipe

  • Incredibly Easy: This is a one-bowl wonder! The steps are straightforward, making it perfect for bakers of all skill levels.
  • Perfectly Chewy & Fudgy: We use melted butter and the right ratio of brown sugar to flour to guarantee a dense, chewy, and fudgy texture every single time.
  • Packed with Flavor: Loaded with rich cookie butter, warm brown sugar, and vanilla, every bite is a flavor explosion.
  • Minimal Ingredients: You only need a handful of pantry staples to whip up a batch of these amazing cookie butter blondies.

What Are Biscoff Blondies?

Biscoff Blondies are a delightful twist on the classic blondie. A traditional blondie is like a brownie but without the cocoa, relying on brown sugar for its rich, molasses-like flavor. Our version takes this buttery treat to the next level by incorporating two key Biscoff ingredients: Lotus Biscoff spread (also known as cookie butter) and crushed Lotus Biscoff cookies. The spread is swirled into the batter, infusing the bars with its signature caramelized and spiced flavor, while the cookies add a wonderful textural contrast.

The Biscoff blondie batter swirled with cookie butter spread in an 8x8 baking pan before baking.
Getting ready to bake! The swirls of Biscoff spread promise so much flavor.

Ingredients You’ll Need

This easy Biscoff blondie recipe uses simple ingredients that come together to create something truly special. Here’s what you’ll need:

  • Unsalted Butter: Melted butter is key to a fudgy texture.
  • Light Brown Sugar: This provides moisture and that classic caramel-like blondie flavor.
  • Egg: One large egg binds everything together.
  • Vanilla Extract: Pure vanilla extract enhances all the other flavors.
  • Biscoff Spread (Cookie Butter): The star of the show! We use creamy spread in the batter and for the swirl on top.
  • All-Purpose Flour: Provides the structure. Be sure to measure it correctly!
  • Baking Powder: Gives just a little bit of lift without making the blondies cakey.
  • Salt: Balances the sweetness.
  • Lotus Biscoff Cookies: Crushed and sprinkled on top for a delightful crunch.
  • White Chocolate Chips (Optional): For an extra layer of creamy sweetness.

Step-by-Step Instructions

Making these chewy Biscoff blondies is a breeze. Just follow these simple steps.

1. Preparation

First, preheat your oven to 350°F (175°C). Grease an 8×8 inch baking pan and line it with parchment paper, leaving some overhang on the sides. This will make it easy to lift the blondies out of the pan later. Set it aside.

2. Mix the Wet Ingredients

In a large mixing bowl, whisk together the melted butter and light brown sugar until fully combined. Add the egg and vanilla extract and whisk vigorously for about a minute until the mixture is light and glossy. This step helps create that desirable crackly top. Next, stir in 1/2 cup of the Biscoff spread until it’s just combined.

3. Add the Dry Ingredients

Add the all-purpose flour, baking powder, and salt to the wet ingredients. Use a rubber spatula to fold everything together until just combined. Be careful not to overmix the batter, as this can lead to a tough, cakey texture. If you’re using them, gently fold in the white chocolate chips.

4. Assemble and Bake

Pour the batter into your prepared baking pan and spread it into an even layer. Warm the remaining Biscoff spread in the microwave for 10-15 seconds until it’s pourable. Dollop it over the batter and use a knife to create beautiful swirls. Sprinkle the crushed Biscoff cookies evenly over the top. Bake for 25-30 minutes, or until the edges are golden brown and a toothpick inserted into the center comes out with moist crumbs attached.

A close-up shot of a single Biscoff blondie, highlighting its chewy texture and swirls of cookie butter.
The texture of these cookie butter blondies is absolute perfection.

Pro Tips for the Chewiest, Fudgiest Blondies

  • Do Not Overbake: The key to a fudgy blondie is to pull it from the oven when the center is still slightly gooey. The residual heat will continue to cook it as it cools.
  • Measure Flour Correctly: Too much flour is the main cause of cakey blondies. Spoon the flour into your measuring cup and level it off with a knife rather than scooping it directly from the bag.
  • Let Them Cool Completely: This is the hardest part! You must let the blondies cool completely in the pan before slicing. This allows them to set properly, ensuring clean cuts and the perfect fudgy texture. We recommend letting them cool for at least 2 hours.
  • Bang the Pan: For an extra-dense and fudgy texture, gently bang the pan on the counter a couple of times right after you pull it from the oven. This removes excess air bubbles.

How to Store Your Blondies

Store your Biscoff Blondies in an airtight container at room temperature for up to 4 days. You can also refrigerate them for up to a week. For longer storage, wrap them tightly and freeze for up to 3 months. Let them thaw at room temperature before enjoying.

Frequently Asked Questions

You can, but you’ll need to adjust the baking time. For a 9×13 inch pan, the blondies will be much thinner and will likely bake in 15-20 minutes. For a 9-inch round pan, they will be thicker and may need 30-35 minutes.

Absolutely! If you love extra texture, you can substitute crunchy Biscoff spread for the creamy version. It will add little bits of cookies throughout the blondies.

Yes, we recommend microwaving the Biscoff spread for 10-15 seconds before adding it on top. This makes it much easier to pour and create beautiful swirls in the batter.

Biscoff spread, also known as cookie butter, is a creamy spread made from Lotus Biscoff cookies. It has a sweet, caramelized flavor with hints of warm spices like cinnamon.

A cakey texture is usually caused by overmixing the batter after adding the flour, or by adding too much flour. For a fudgy result, mix only until the flour is just combined and be sure to measure your flour correctly by spooning it into the measuring cup.

More Dessert Recipes to Explore

If you loved these blondies, you might also enjoy our decadent Peach Cobbler Cheesecake or these festive Pumpkin Cheesecake Cookies. For another easy and impressive dessert, give our Fresh Raspberry Cake a try!

The Best Biscoff Blondies Recipe

A close-up shot of a single Biscoff blondie, highlighting its chewy texture and swirls of cookie butter.

Biscoff Blondies: The Ultimate Chewy & Fudgy Recipe

The best Biscoff Blondies recipe, featuring a perfectly chewy and fudgy texture. These easy, one-bowl cookie butter blondies are swirled with Biscoff spread and topped with crushed cookies for the ultimate indulgent dessert.
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings: 16 blondies
Course: Dessert, Snack
Cuisine: American
Calories: 185

Ingredients
  

  • 1/2 cup Unsalted Butter melted
  • 1 cup Light Brown Sugar packed
  • 1 Large Egg at room temperature
  • 1 tsp Vanilla Extract
  • 3/4 cup Creamy Biscoff Spread divided
  • 1 cup All-Purpose Flour
  • 1/2 tsp Baking Powder
  • 1/4 tsp Salt
  • 6 Lotus Biscoff Cookies crushed
  • 1/2 cup White Chocolate Chips optional

Equipment

  • 1 8x8 inch baking pan
  • 1 Large Mixing Bowl
  • Parchment Paper

Instructions
 

  1. Preheat your oven to 350°F (175°C). Grease and line an 8x8 inch baking pan with parchment paper, leaving an overhang on the sides for easy removal.
  2. In a large bowl, whisk together the melted butter and packed light brown sugar. Add the egg and vanilla, and whisk vigorously for 1 minute until light and glossy. Stir in 1/2 cup of the Biscoff spread until just combined.
  3. Add the flour, baking powder, and salt to the bowl. Fold with a spatula until just combined, being careful not to overmix. If using, fold in the white chocolate chips.
  4. Pour the batter into the prepared pan and spread evenly. Warm the remaining 1/4 cup of Biscoff spread in the microwave for 10-15 seconds. Dollop over the batter and use a knife to create swirls.
  5. Sprinkle the crushed Biscoff cookies over the top. Bake for 25-30 minutes, or until the edges are golden and a toothpick inserted in the center comes out with moist crumbs.
  6. Let the blondies cool completely in the pan on a wire rack before lifting them out and slicing into 16 squares. This is crucial for a fudgy texture.

Notes

Do Not Overbake: For the fudgiest texture, err on the side of underbaking. The blondies will set as they cool.
Cooling is Key: Don't rush the cooling process! Allowing the blondies to cool completely is essential for clean slices and the perfect texture.
Variations: Feel free to add a half cup of chopped nuts like pecans or walnuts for extra crunch.

Share Your Creations!

We are certain this will become your go-to Biscoff Blondies recipe! It’s simple, delicious, and absolutely foolproof. If you make these blondies, we would love to see them! Please leave a comment below or share a photo of your masterpiece on Pinterest. Happy baking!

A stack of chewy Biscoff blondies on a plate, showing the fudgy inside and crunchy Biscoff cookie topping. The perfect easy cookie butter blondie recipe.
You won't believe how easy it is to make these incredibly fudgy Biscoff Blondies!

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