As the warm, nutty aroma of brown butter fills your kitchen, it becomes crystal clear: dessert isn’t just food; it’s an experience. That’s where these delightful Brown Butter Biscoff Blondies come in, perfectly chewy and fudgy with a unique twist of caramel-like Biscoff spread. Not only are they incredibly simple to whip up in just one bowl, but they also come together in under 25 minutes—making them a quick treat for any craving or gathering. The combination of luscious chocolate pools and the depth of flavor from the brown butter offers a comforting sweetness that never fails to impress. So, what’s your favorite way to enjoy blondies? Let’s dive into this recipe and create something truly special!

Why are Brown Butter Biscoff Blondies a must-try?
Simplicity at its Core: You’ll appreciate how easy it is to create these delightful blondies—all it takes is one bowl and minimal fuss.
Rich, Indulgent Flavor: The warm nuttiness of brown butter perfectly complements the unique caramel notes from Biscoff spread, creating a dessert experience like no other.
Versatile Treats: Whether you’re serving these for a casual movie night or a festive gathering, they’ll surely please a crowd.
Gooey Deliciousness: Each bite offers a perfect balance of chewy centers and pools of melted chocolate, making them irresistible. Pair them with a scoop of ice cream for an extra treat, like with our Garlic Butter Shrimp or Honey Butter Brioche for a complete indulgence!
Quick Baking Bliss: Ready in under 25 minutes, this recipe is ideal for satisfying your sweet tooth without spending hours in the kitchen. Dive into these blissful blondies and elevate your dessert game!
Brown Butter Biscoff Blondies Ingredients
For the Batter
- Unsalted Butter – Adds richness and flavor; brown butter will provide nutty undertones.
- Brown Sugar – Provides deep caramel notes and moisture; may substitute with coconut sugar for a healthier option.
- Egg + Egg Yolk – Adds structure and richness to the blondies; using an extra yolk ensures a chewier texture.
- Biscoff Cookie Butter – A key ingredient, offering a unique spice and caramel flavor; no substitute gives the same flavor profile.
- Salt – Balances sweetness; can omit for a completely sugar-free dish.
- All-Purpose Flour – Provides structure; can substitute with a gluten-free flour blend.
- Chocolate (chopped or chips) – Adds delicious chocolatey pools of flavor; choose 60-70% dark chocolate for optimal richness.
Optional Toppings
- Biscoff Cookies – Provides added crunch and flavor; can omit if desired.
Step‑by‑Step Instructions for Brown Butter Biscoff Blondies
Step 1: Preheat the Oven
Begin by preheating your oven to 350°F (175°C). While the oven warms up, line an 8×8 inch baking pan with parchment paper, allowing some overhang for easy removal later. This setup ensures your Brown Butter Biscoff Blondies will bake evenly and slide out smoothly once cooled.
Step 2: Brown the Butter
In a medium saucepan, melt ½ cup of unsalted butter over medium heat. Stir constantly for about 6-10 minutes until the butter foams and turns a deep golden brown, releasing a nutty aroma. Keep a close eye to prevent burning. Once ready, remove from heat and let it cool slightly while you prepare the batter.
Step 3: Mix the Batter
In a medium bowl, combine the cooled brown butter and 1 cup of brown sugar, whisking until well blended. Next, add in 1 large egg and 1 egg yolk, whisking until the mixture is smooth. Gradually mix in ½ cup of Biscoff cookie butter until fully incorporated, creating a rich and creamy base for your blondies.
Step 4: Incorporate Dry Ingredients
Sprinkle in ½ teaspoon of salt and 1 cup of all-purpose flour into the wet mixture. Gently stir until just combined; it’s important not to overmix. Once you see no dry flour, fold in ½ cup of chopped chocolate, ensuring even distribution throughout the batter, adding those delicious chocolatey pools to your Brown Butter Biscoff Blondies.
Step 5: Transfer and Optional Toppings
Pour the blondie batter into your prepared baking pan, using a spatula to spread it evenly. If desired, sprinkle extra chocolate and crushed Biscoff cookies on top for an added crunch and flavor boost. This step elevates your blondies and makes them visually appealing.
Step 6: Bake to Perfection
Place the pan in the preheated oven and bake for approximately 20-25 minutes. You’ll know they are done when the edges are lightly browned and a toothpick inserted in the center comes out mostly clean. Keep an eye on them to avoid overbaking, which can lead to a dry texture.
Step 7: Cool and Slice
Remove the pan from the oven and allow the Brown Butter Biscoff Blondies to cool completely in the pan for about 2 hours. This cooling time enhances their fudgy texture. Once cooled, lift the blondies out using the parchment overhang, slice them into squares, and prepare to indulge in this delicious homemade treat!

What to Serve with Brown Butter Biscoff Blondies?
The magic of these blondies doesn’t stop at their deliciousness; they invite you to create a full dessert experience.
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Vanilla Ice Cream: A classic pairing, the creaminess of vanilla ice cream balances the rich flavors, enhancing the experience with each heavenly bite.
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Whipped Cream: Light and airy, a dollop of freshly whipped cream adds a soft texture that complements the chewy blondies, making each mouthful extra luscious.
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Fresh Berries: Bright, tangy berries (like raspberries or strawberries) offer a refreshing contrast to the sweet, dense blondies, adding a touch of natural sweetness and color to your plate.
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Espresso or Coffee: Serve with a warm cup of espresso or a rich coffee to balance the sweetness. The bitterness will highlight the caramel notes of the blondies beautifully, making it a match made in heaven.
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Chocolate Sauce: Drizzle warm chocolate sauce over each blondie for an indulgent treat that brings out the chocolate pools within and makes for an eye-catching dessert.
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Coconut Whipped Cream: For a tropical twist, coconut whipped cream provides a delicious, dairy-free option that pairs wonderfully with the nutty flavors of brown butter.
Each pairing elevates the sensory experience, creating memorable moments around the dessert table, inviting everyone to savor sweetness together!
Expert Tips for Brown Butter Biscoff Blondies
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Measure Precisely: Use a kitchen scale for accurate measurements, especially for flour and brown sugar, to achieve the perfect texture in your blondies.
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Watch the Butter: Keep a close eye on the butter as it browns. Remove it from heat when it reaches a deep golden color and nutty aroma to avoid burning.
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Mix Wisely: Be careful not to overmix the batter. Fold ingredients until just combined for a chewy and fudgy blondie texture without toughness.
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Check Early: Start checking your blondies around the 20-minute mark to ensure they’re not overbaked—aim for a slight gooeyness in the center.
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Cool Completely: Allow the blondies to cool for at least 2 hours before slicing; this helps enhance the fudgy texture, making every bite a dream.
Make Ahead Options
These Brown Butter Biscoff Blondies are perfect for meal prep, allowing you to enjoy their deliciousness without the last-minute rush! You can prepare the batter up to 24 hours in advance; simply mix all the wet and dry ingredients as directed and store it in an airtight container in the refrigerator. This helps maintain the blondies’ rich texture and flavor. When you’re ready to bake, just pour the chilled batter into your prepared pan, top with additional chocolate and Biscoff cookies if desired, and bake as instructed. With this make-ahead option, you’ll save precious time while still treating your family to homemade delightful treats!
Brown Butter Biscoff Blondies Variations
Feel free to let your creativity shine by customizing these delectable blondies to suit your taste!
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Nutty Delight: Add chopped walnuts or pecans for delightful crunch and added texture in every bite. The warm nuttiness pairs perfectly with the caramel notes of Biscoff.
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Peanut Butter Twist: Substituting Biscoff with creamy peanut butter or Nutella will introduce a rich, nutty flavor. Each square becomes a new adventure in flavor!
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White Chocolate Shift: Swap dark chocolate for sweet white chocolate chips for a delightful contrast. The creaminess will elevate the overall sweetness of your blondies.
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Coconut Charm: Add shredded coconut to the batter for a tropical touch. It not only adds flavor but also enhances the chewy texture that blondies are known for.
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Spiced Up: Incorporate a dash of cinnamon or a pinch of nutmeg into the batter for an aromatic twist. This subtle change adds warmth and depth, making each bite even more comforting.
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Caramel Drizzle: Pour a generous drizzle of salted caramel on top before serving. It adds a luscious layer that would complement the rich flavors beautifully!
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Fruit Enhancement: Toss in some mini chocolate chips or dried fruit like cranberries for a fruity twist. This adds bursts of flavor and texture, making every bite delightful!
Elevate your dessert experience with these variations, and have fun experimenting! If you’re looking for something equally indulgent, try out our Fudgy Brownies Indulge or our delightful Buttermilk Pancakes Discover for a breakfast treat!
How to Store and Freeze Brown Butter Biscoff Blondies
Room Temperature: Store the blondies in an airtight container at room temperature for up to 4-5 days to maintain their chewy texture and rich flavor.
Fridge: For extended freshness, keep them in the refrigerator, where they will last up to a week. Allow them to come to room temperature before serving for the best taste.
Freezer: To freeze, wrap individual blondies in plastic wrap and place them in a freezer-safe bag or container. They can last up to 3 months in the freezer.
Reheating: When ready to enjoy, thaw the blondies in the refrigerator overnight, then warm them in the microwave for about 10-15 seconds to revive their gooey goodness.

Brown Butter Biscoff Blondies Recipe FAQs
How do I choose the right Biscoff spread for my Blondies?
Absolutely! Look for a jar of smooth Biscoff cookie butter, as it will blend seamlessly into the batter and create that signature caramel-like flavor. Be sure to check the ingredients list; the purer the spread, the richer the taste!
How should I store leftover Brown Butter Biscoff Blondies?
Store the blondies in an airtight container at room temperature for up to 4-5 days for optimal freshness. If you want to keep them longer, place them in the refrigerator, where they can last for a week. Allow them to come to room temperature before serving for the best taste!
Can I freeze Brown Butter Biscoff Blondies?
Very! For freezing, wrap each blondie individually in plastic wrap and place them in a freezer-safe bag or container to prevent freezer burn. They can last up to 3 months in the freezer! When you’re ready to enjoy them, thaw in the refrigerator overnight, then warm them in the microwave for about 10-15 seconds for that fresh-baked taste.
What if my Blondies turn out too cakey?
If your blondies end up too cakey, it’s likely from overmixing the batter or using too much flour. Be sure to mix until just combined and measure your flour accurately. To correct this next time, try adding an extra egg yolk to enhance the chewiness!
Can I use a different type of flour for my Blondies?
Yes, you can substitute all-purpose flour with a gluten-free flour blend if needed! Just ensure that your blend includes xanthan gum, which helps bind the ingredients together, maintaining the blondies’ chewy texture. Enjoy experimenting while keeping the deliciousness intact!
Are there any dietary concerns for pets or allergies with these Blondies?
Definitely, it’s essential to consider allergies! Brown Butter Biscoff Blondies contain ingredients like butter, wheat, and eggs, which could be allergens for some individuals. Also, be mindful that chocolate is toxic to dogs, so keep these treats safely out of their reach. Always check for any known allergies before serving!

Brown Butter Biscoff Blondies for the Ultimate Sweet Craving
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C) and line an 8x8 inch baking pan with parchment paper.
- Melt 1/2 cup of unsalted butter in a medium saucepan over medium heat and brown it for about 6-10 minutes.
- Combine the cooled brown butter with 1 cup of brown sugar, then whisk in 1 large egg and 1 egg yolk.
- Sprinkle in 1/2 teaspoon of salt and 1 cup of all-purpose flour, mixing until just combined, then fold in 1/2 cup of chopped chocolate.
- Pour the batter into the prepared baking pan, spreading it evenly. Optionally, add more chocolate and crushed Biscoff cookies on top.
- Bake for 20-25 minutes until lightly browned and mostly clean when tested with a toothpick.
- Allow the blondies to cool in the pan for about 2 hours before lifting them out to slice into squares.