Is there anything more delightful than the sweet, caramel undertones of Biscoff cookies? I first discovered Biscoff blondies when a friend brought them to a gathering, and they were an instant hit. The combination of gooey blondie texture with those crunchy cookie crumbs creates a treat that is both comforting and indulgent. Imagine biting into a square that’s warm, rich, and hints at your favorite café treat—it’s pure bliss!
Perfect for a cozy night in or when you want to impress guests, these blondies are a snap to whip up, taking just 45 minutes from start to finish. With only a handful of ingredients and an addictive Biscoff swirl on top, you’ll find yourself reaching for seconds (or thirds!). Whether you’re a seasoned chef or someone looking to enchant a loved one with homemade goodness, this recipe is a simple yet exquisite way to brighten your day. Let’s dive into making these delicious Biscoff blondies!
Why You'll Love This Biscoff Blondies
- These Biscoff blondies are incredibly easy to make, perfect for both experienced bakers and novices alike.
- You’ll fall in love with their rich, caramel flavor that beautifully captures the essence of Biscoff cookies.
- The versatility of this recipe means you can enjoy them as a dessert, a snack, or even wrapped up as gifts for friends.
- Their stunning visual appeal, with the marbled Biscoff spread on top, is sure to impress anyone who lays eyes on them.
Biscoff Blondies Ingredients
For the Batter
- Unsalted butter – melts beautifully for a rich base flavor.
- Brown sugar – adds moisture and a deep caramel sweetness.
- Granulated sugar – balances the richness of brown sugar for a perfect sweetness.
- Large eggs – help bind the ingredients together and add fluffiness.
- Vanilla extract – enhances the overall flavor profile of the Biscoff blondies.
- All-purpose flour – creates the structure and texture of the blondies.
- Baking powder – provides the necessary lift to achieve that lovely blondie texture.
- Salt – balances the sweetness and enhances the flavors.
For the Biscoff Swirl
- Biscoff cookie crumbs – adds a delightful crunch and authentic Biscoff flavor throughout.
- Biscoff spread – creates that irresistible creamy swirl on top, making these blondies sinfully good.

How to Make Biscoff Blondies
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Preheat your oven to 350°F (175°C). This creates the perfect environment for baking your blondies evenly, ensuring a delightful texture throughout.
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Mix the melted butter, brown sugar, and granulated sugar in a large mixing bowl. Stir vigorously until everything is well combined and glossy. This should take about 2-3 minutes.
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Add the large eggs and vanilla extract to the sugary mixture. Whisk them in until the batter is smooth and creamy, creating a delicious base for your Biscoff Blondies.
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Combine the flour, baking powder, and salt in another bowl. Whisk these dry ingredients together thoroughly to ensure even distribution and prevent clumping.
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Gradually mix the dry ingredients into the wet ingredients. Stir gently until just combined, being cautious not to overmix. Your batter should be thick and slightly gooey.
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Fold in the Biscoff cookie crumbs using a spatula or wooden spoon. This will add little bursts of that irresistible flavor to every bite of your blondies!
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Spread the batter evenly into a greased baking pan, ensuring it fills the corners. This helps your blondies bake uniformly, resulting in a perfectly chewy texture.
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Dollop the Biscoff spread on top of the batter and swirl it gently with a knife. This creates a beautiful marbled effect that not only looks enticing but adds rich, creamy flavor.
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Bake in the preheated oven for 25-30 minutes. Check for doneness by inserting a toothpick—if it comes out clean or with a few moist crumbs, your blondies are ready!
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Cool the baking pan on a wire rack. Once cooled, cut into squares, and prepare for the compliments to roll in!
Optional: Serve warm with a scoop of vanilla ice cream for an indulgent treat.
Exact quantities are listed in the recipe card below.
Biscoff Blondies Variations
Embrace your creativity and personalize these delightful blondies to suit your taste and occasion!
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Nutty Twist: Add 1 cup of chopped walnuts or pecans for a crunchy contrast to the chewy texture, enhancing each bite’s richness.
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Chocolate Chips: Incorporate 1 cup of semi-sweet or white chocolate chips for a sweet, gooey addition that pairs beautifully with Biscoff.
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Spice It Up: Add a teaspoon of cinnamon or nutmeg to the batter for a comforting spice flavor that adds warmth to every bite.
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Dairy-Free Option: Substitute unsalted butter with coconut oil and use dairy-free chocolate chips for a delicious vegan-friendly treat.
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Caramel Swirl: Add a swirl of caramel sauce before baking for an extra gooey experience that takes the dessert to another level of indulgence.
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Biscoff Layer Cake: Double the recipe and layer the blondies to create a luscious Biscoff cake—just add frosting in between for a show-stopping dessert.
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Salted Caramel: Sprinkle a touch of sea salt on top before baking to balance the sweetness and enhance the flavors, creating a sweet-and-salty combo.
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Fruit Flavor Boost: Mix in 1 cup of dried fruits like cranberries or cherries for a chewy, fruity contrast that brightens the rich blondies.
Feel the excitement as you transform this recipe to match your cravings and impress your loved ones!
What to Serve with Biscoff Blondies?
These delightful treats are the perfect ending to any meal, leaving your taste buds dancing with joy.
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Vanilla Ice Cream: Combines beautifully with the buttery, spiced flavor of the blondies, creating a heavenly contrast. A scoop of creamy vanilla adds a delightful chill against the warmth of the freshly baked blondies.
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Fresh Berries: A handful of raspberries or strawberries introduces a tart, refreshing note that beautifully balances the sweetness. Their juiciness cuts through the richness, making each bite feel light and invigorating.
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Salted Caramel Sauce: Drizzling this dreamy sauce over the blondies enhances the caramel notes in the Biscoff while adding a salty kick. It elevates the dessert to new levels of indulgence—perfect for those sweet cravings!
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Coffee or Espresso: The rich, bold flavors of a good cup of coffee complement the sweetness of the blondies wonderfully. Sipping while enjoying a piece can transport you to a delightful coffee shop atmosphere.
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Chai Tea: The warm spices in chai echo the flavors of Biscoff, creating a comforting match. This cozy beverage pairs beautifully, especially on a chilly day, wrapping you in a sense of warmth.
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Chocolate Drizzle: A simple melted chocolate drizzle adds a luscious, decadent touch that takes these blondies to another level. It’s a great way to add richness and a touch of elegance to your dessert.
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Whipped Cream: Light and airy, a dollop of whipped cream provides a delicate contrast to the dense, chewy texture of the blondies. It’s a classic pairing that feels indulgent without overwhelming your palate.
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Milkshake: Combining your favorite flavors in a milkshake creates a rich and nostalgic treat that pairs wonderfully with these baked goodies. A blended beverage alongside blondies makes for a delightful dessert experience!
Make Ahead Options
These Biscoff Blondies are perfect for meal prep enthusiasts! You can effortlessly prepare the batter up to 24 hours in advance. Simply mix the wet and dry ingredients separately, then refrigerate them until you’re ready to bake. The Biscoff cookie crumbs can also be measured and stored in an airtight container for up to 3 days without losing their flavor. When you’re ready to enjoy your blondies, simply combine the prepped ingredients, fold in the cookie crumbs, and bake as directed. This way, you’ll have a delicious treat ready in a flash, saving you precious time on busy days while still delivering that rich, Biscoff flavor just as delightful as when freshly made!
How to Store and Freeze Biscoff Blondies
Room Temperature: Store in an airtight container at room temperature for up to 3 days for optimal freshness. This keeps them soft and chewy.
Fridge: If you prefer, refrigerate in an airtight container for up to 5 days. Let them come to room temperature before serving for the best taste.
Freezer: Freeze Biscoff Blondies for up to 3 months. Wrap them tightly in plastic wrap and then in foil before freezing to prevent freezer burn.
Reheating: When ready to enjoy, thaw in the fridge overnight or at room temperature for an hour. Warm in the microwave for 10-15 seconds to bring back that fresh-baked taste!
Chef's Helpful Tips
- For the perfect Biscoff Blondies, make sure your melted butter is not too hot to avoid scrambling the eggs when you mix them in.
- Keeping your eggs at room temperature helps them blend more smoothly into the batter, ensuring a richer flavor and better texture.
- Be careful not to overmix when combining the wet and dry ingredients, as this can lead to tougher blondies instead of that desired chewy texture.
- To achieve a uniform bake, always spread the batter evenly in the pan and make sure your oven is fully preheated to 350°F before placing your dish inside.
Biscoff Blondies Recipe FAQs
How do I choose the best ingredients for Biscoff Blondies?
Absolutely! For the best Biscoff Blondies, opt for fresh, high-quality ingredients. Look for butter that is creamy and unsalted; this adds richness without added saltiness. The Biscoff cookies should be crispy and free from dark spots, indicating freshness. Make sure your eggs are at room temperature—they mix better into the batter.
How should I store Biscoff Blondies for freshness?
To keep your Biscoff Blondies fresh, store them in an airtight container at room temperature for up to 3 days. This preserves their delightful chewiness. If you’d like them to last longer, you can refrigerate them for up to 5 days. Just remember to bring them back to room temperature before enjoying them, as this enhances the flavor and texture!
Can I freeze Biscoff Blondies? How?
Yes! Freezing Biscoff Blondies is a great way to extend their life. Wrap each square tightly in plastic wrap and then in foil to protect them from freezer burn. Label the packaging with the date. They can be stored in the freezer for up to 3 months. When you’re ready to enjoy, simply thaw in the fridge overnight or leave them at room temperature for about an hour, and then warm in the microwave for 10-15 seconds for that fresh-baked taste!
What should I do if my Biscoff Blondies turn out dry?
Very! If your Biscoff Blondies are dry, it often means they might have been overbaked or overmixed. Always keep a close eye on the baking time, checking for doneness at around 25 minutes. Insert a toothpick—if it comes out with a few moist crumbs, they’re ready. Additionally, stirring the wet and dry ingredients gently (without overmixing) helps maintain their chewiness!
Are Biscoff Blondies suitable for someone with allergies?
The more, the merrier! However, be mindful that Biscoff Blondies contain common allergens including wheat (gluten) from the all-purpose flour and dairy from the butter. If you need a gluten-free option, consider substituting the flour with a 1:1 gluten-free baking blend. For dairy-free options, swap in dairy-free butter and use a vegan egg substitute such as flax eggs. Always check your ingredients to ensure they meet your dietary needs!

Biscoff Blondies
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C).
- Mix the melted butter, brown sugar, and granulated sugar in a large mixing bowl until glossy.
- Add the large eggs and vanilla extract to the mixture and whisk until smooth.
- Combine the flour, baking powder, and salt in another bowl and whisk together.
- Gradually mix the dry ingredients into the wet ingredients until just combined.
- Fold in the Biscoff cookie crumbs.
- Spread the batter evenly into a greased baking pan.
- Dollop the Biscoff spread on top and swirl with a knife.
- Bake for 25-30 minutes, checking for doneness with a toothpick.
- Cool on a wire rack, then cut into squares.



