This post was originally published in September 2020 and has been thoughtfully updated with new content, improved instructions, and enhanced SEO optimization to bring you the best possible Biscoff blondie recipe.

For those unfamiliar with the magic of Biscoff spread (also known as cookie butter), imagine the smooth, creamy consistency of peanut butter, but with an enchanting flavor profile of warm, caramelized spices and a distinct hint of cinnamon. It’s an utterly addictive taste that transforms ordinary baked goods into something truly special. In this recipe, these delightfully gooey blondies are generously swirled with melted Biscoff spread, then crowned with crunchy Biscoff cookies, creating an unparalleled depth of cookie butter goodness. These brown butter Biscoff blondies are truly the ultimate indulgence, perfectly crafted for every passionate cookie butter enthusiast.

Our Biscoff blondies boast an irresistibly gooey and wonderfully chewy texture, ensuring that every single bite delivers a harmonious blend of rich cookie butter and sweet chocolate chips. If you’re new to the art of making brown butter, don’t worry! We encourage you to explore our detailed guide on how to make brown butter to master this flavor-enhancing technique. It’s a simple step that elevates these blondies from great to absolutely extraordinary. Mastering brown butter is a game-changer for many baking recipes, adding a nutty, complex note that balances the sweetness beautifully.

Cookie butter is undeniably one of our absolute favorite ingredients to incorporate into baking, and its versatility shines through in many beloved recipes. Beyond these incredible blondies, we’ve created a collection of other must-try Biscoff desserts. Dive into our Biscoff-filled cookies for a delightful surprise center, savor the moist perfection of the best Biscoff cake, and experience pure bliss with our decadent Biscoff cheesecake! Each recipe showcases the unique charm of this spiced cookie spread, guaranteeing a delightful experience for your taste buds.

Why You’ll Fall in Love with This Brown Butter Biscoff Blondies Recipe!

• Exquisite Brown Butter Flavor: These easy Biscoff blondies begin with brown butter, a foundational ingredient that introduces a deep, nutty, and toasted flavor profile. This richness perfectly complements and balances the inherent sweetness of the cookie butter, creating a more sophisticated and layered taste experience. While brown butter offers unparalleled depth, you can easily opt for regular melted butter if you’re short on time or prefer a simpler approach, though we highly recommend the brown butter for its unique charm!
• Intense Biscoff Flavor Throughout: We ensure maximum Biscoff enjoyment by swirling luscious, melted cookie butter (or Biscoff spread) directly into the blondie batter just before baking. This creates beautiful ribbons of spiced cookie goodness in every single bite. The experience is further amplified by a generous topping of crunchy Biscoff cookies, delivering an irresistible texture and an even more pronounced cookie butter taste.
• Effortless One-Bowl Preparation: Say goodbye to mountains of dirty dishes! This entire Biscoff blondie recipe comes together in just one large mixing bowl. This streamlined process makes baking quick, enjoyable, and cleanup a breeze, leaving you more time to savor your delicious creations. It’s the perfect recipe for a satisfying baking session without the fuss.
• Unbelievably Fudgy and Gooey Texture: The secret to our blondies’ irresistible chewiness and super fudgy interior lies in the omission of traditional leavening agents like baking powder or baking soda. By forgoing these, the blondies remain dense, moist, and wonderfully gooey, providing that desirable soft, melt-in-your-mouth texture that blondie lovers adore. This intentional choice ensures a rich, satisfying bite every time.

Essential Ingredients for Perfect Biscoff Blondies

Creating these divine brown butter Biscoff blondies requires a carefully selected list of everyday baking staples, each playing a crucial role in achieving the perfect flavor and texture. Here’s a detailed look at the simple yet essential ingredients:

• All-Purpose Flour: The foundation of our blondie batter. Make sure to measure your flour correctly (preferably by weight) to avoid a dense or dry outcome. All-purpose flour provides the necessary structure without making the blondies tough.
• Lotus Biscoff Spread (Cookie Butter): This is the star of the show! You can find Biscoff spread in most grocery stores, or look for cookie butter at specialty stores like Trader Joe’s. Its unique spiced caramel flavor is irreplaceable. We recommend melting it in the microwave for just a few seconds; this makes it beautifully liquid, allowing for effortless swirling through the batter and ensuring maximum flavor distribution.
• Unsalted European-Style Butter: We specifically recommend European-style unsalted butter for its higher butterfat content, which contributes significantly to a richer, creamier taste and a superior fudgy texture in your blondies. Using unsalted butter also gives you complete control over the salt content in your recipe. This butter is then browned, which deepens its flavor and adds a nutty complexity.
• Granulated Sugar & Light Brown Sugar: The combination of these two sugars is key. Granulated sugar contributes to crisp edges, while light brown sugar adds moisture, depth, and that signature chewy texture characteristic of blondies.
• Large Eggs (Room Temperature): Eggs bind the ingredients, provide richness, and contribute to the blondies’ chewy, fudgy consistency. Ensuring they are at room temperature helps them emulsify better with the other ingredients, leading to a smoother batter.
• Kosher Salt: A touch of salt is essential to balance the sweetness and enhance all the other flavors, making them pop. We use kosher salt for its clean taste. (Refer to notes for substitutions).
• Pure Vanilla Extract: Use a good quality vanilla extract. It enhances the overall sweetness and aroma of the blondies, adding a warm, comforting note that ties all the flavors together.
• Semi-Sweet Chocolate Chips: These provide delightful pockets of melted chocolate, offering a perfect contrast to the spiced cookie butter. While semi-sweet is our go-to, these blondies are also incredibly delicious with white chocolate chips, dark chocolate chunks, or a combination!
• Lotus Biscoff Biscuits (Optional Topping): For an extra layer of cookie butter bliss and a wonderful textural contrast, we love to top these blondies with crumbled Biscoff cookies just before baking. This step is optional but highly recommended for the ultimate cookie butter experience.

Step One: Brown the Butter and Prepare Your Pan. Begin by preheating your oven to 350°F (175°C). While the oven heats, grease an 8×8 inch baking pan and line it with parchment paper, leaving an overhang on two sides for easy removal later. Now, in a small, light-colored saucepan (a light-colored pan helps you monitor the color change), melt the unsalted butter over medium-low heat. Once fully melted, increase the heat slightly to medium. The butter will begin to foam, then subside. Keep a close eye on it; the milk solids at the bottom of the pan will start to turn a beautiful golden brown, emitting a rich, nutty, and toasted aroma. As soon as you see these distinct brown flecks and smell that characteristic nutty scent, immediately remove the pan from the heat. Pour the hot brown butter into a large heat-safe mixing bowl and allow it to cool to room temperature. This cooling step is crucial to prevent the eggs from scrambling when added later.

Step Two: Combine Sugars with Cooled Brown Butter. Once your glorious brown butter has cooled sufficiently (it should still be liquid but no longer hot to the touch), add the granulated sugar and light brown sugar to the bowl. Whisk these ingredients vigorously until they are thoroughly combined. The mixture will appear quite sandy and thick, which is perfectly normal and contributes to the wonderful chewy texture of the blondies.

Step Three: Incorporate Wet Ingredients. To the butter and sugar mixture, add your room temperature large eggs, kosher salt, and the pure vanilla extract. Whisk everything together until the mixture is smooth, homogenous, and has lightened slightly in color. Ensure all ingredients are well-integrated to build a robust flavor base for your blondies.

Step Four: Fold in the All-Purpose Flour. Gently add the all-purpose flour to the wet ingredients. Using a rubber spatula, carefully fold the flour into the batter. Mix just until there are no visible streaks of dry flour remaining. It is absolutely critical not to overmix the dough at this stage, as overmixing can develop the gluten in the flour, resulting in tough, dry blondies instead of the desired fudgy, chewy texture.

Step Five: Fold in Chocolate Chips. Gently fold your semi-sweet chocolate chips into the blondie batter using your rubber spatula. Distribute them evenly throughout the mixture, ensuring a burst of chocolate in every piece.

Step Six: Transfer to Pan. Carefully pour the prepared blondie batter into your greased and parchment-lined 8×8 inch baking pan. Use your rubber spatula to gently spread and smooth the batter out evenly across the bottom of the pan, ensuring a consistent thickness for uniform baking.

Step Seven: Swirl in the Biscoff Spread. In a microwave-safe bowl, warm up your Biscoff cookie spread in short, 15-20 second blasts, stirring in between. You want the cookie butter spread to be melted and liquid enough to easily swirl, but not so hot that it cooks the batter. Drop approximately 5-6 generous dollops of the melted Biscoff spread evenly onto the surface of the blondie batter in the pan.

Step Eight: Swirl, Top, and Bake. Take a butter knife or a toothpick and gently swirl the melted Biscoff spread into the blondie batter. Create beautiful, artistic ribbons and patterns. Next, for an extra textural crunch and intensified Biscoff flavor, break up and crush the Biscoff cookies directly over the top of the blondies. Feel free to add a few more chocolate chips if desired! Place the pan into your preheated oven and bake for 30-35 minutes. The blondies are ready when the edges appear set and slightly golden, and a toothpick inserted into the center comes out with moist crumbs attached, indicating a perfectly gooey, underbaked (but not raw) center that will continue to set as it cools.

Expert Tips & Tricks for Perfect Biscoff Blondies!

Achieving bakery-worthy blondies is easy with a few insider tips:

• Embrace Your Kitchen Scale for Precision: For consistently perfect baking results, we cannot stress enough the importance of using a digital kitchen scale and measuring your ingredients in grams (the metric way). Baking by weight is significantly more accurate than using volume measurements (cups), especially for flour, where it’s incredibly easy to inadvertently add too much, resulting in dry, dense blondies. A scale ensures repeatable success every time!
• Avoid Overmixing Your Dough: Once you add the flour, mix the batter only until just combined and no streaks of dry flour remain. Overmixing develops the gluten in the flour, which will lead to tough, dense, and less enjoyable blondies. A light hand here ensures a tender and chewy texture.
• Watch Your Oven, Not Just the Clock: Every oven is different, and baking times can vary. For truly gooey blondies, keep a close eye on them towards the end of the baking time. The edges should be set and lightly golden, but the center should still look a little soft and slightly underbaked. Remember, blondies continue to cook slightly from residual heat after being removed from the oven. Overbaking is the quickest way to end up with dry, cakey blondies instead of fudgy ones!
• Patience is Key: Cool Completely Before Slicing: We know the aroma of freshly baked blondies is almost unbearable, but resist the urge to cut into them while they’re warm! Blondies need ample time to cool completely in the pan before being cut. This allows them to fully set and solidify their structure. Cutting them too soon will result in crumbling, messy bars that fall apart. Trust us, the wait is worth it for perfectly neat and fudgy squares.
• Experiment with Chocolate Chip Variations: While semi-sweet chocolate chips are a classic choice, don’t hesitate to customize your blondies! White chocolate chips offer a creamy, sweet contrast to the spiced Biscoff. Alternatively, you can use milk chocolate, dark chocolate, chocolate chunks, or even omit them entirely if you prefer a pure cookie butter experience. Feel free to mix and match or add other inclusions like chopped nuts (if you like).
• Bring Ingredients to Room Temperature: For the best emulsion and smoothest batter, ensure your eggs and any other dairy ingredients (if applicable) are at room temperature. This helps them incorporate more easily and evenly into the batter, leading to a more consistent texture in your finished blondies. Pull them out of the fridge about 30-60 minutes before you start baking.

Got More Questions About Biscoff Blondies? We’ve Got Answers!

Here are some frequently asked questions to help you master these delicious cookie butter blondies:

Can’t Get Enough Biscoff? Try These Other Irresistible Recipes Next!

If you’re as enamored with the spiced, caramel notes of Biscoff as we are, you’ll love exploring these other fantastic cookie butter creations. Each recipe offers a unique way to enjoy your favorite spread!

If you’ve had the pleasure of making this delightful Biscoff blondies recipe, we would be absolutely thrilled to hear from you! Please make sure to leave a ⭐️ rating and review below to share your experience and feedback. Your ratings and comments are incredibly valuable to us and help other bakers discover and enjoy these recipes. We also love seeing your delicious creations, so don’t forget to tag us on Instagram @alpineella so we can admire what you’ve made! You can also follow along with our latest baking adventures on Pinterest, Facebook, and TikTok for more tempting treats and baking inspiration! Happy baking!

Brown Butter Biscoff Blondies

Ella Gilbert

Nutrition