Chewy One-Bowl Biscoff Blondies are a delightful treat that combines the rich, caramelized flavors of Biscoff cookies with the soft, chewy texture of classic blondies. These bars are incredibly easy to make, requiring just one bowl and minimal cleanup, which makes them perfect for any occasion. The aroma of baking Biscoff fills your kitchen, making it an inviting and nostalgic experience, evoking memories of cozy family gatherings. Plus, these blondies are wonderfully comforting, with a hint of spice and sweetness that is utterly addictive. This step-by-step recipe will guide you through the process of making these delectable blondies, ensuring you achieve the perfect texture and flavor every time.
Ingredients
To create Chewy One-Bowl Biscoff Blondies, you will need the following ingredients:
- 22 Biscoff or Speculoos cookies, divided: These cookies provide a unique flavor profile with their caramel and spice notes.
- ½ cup unsalted butter, melted (1 stick or 113g): This creamy butter adds richness and moisture to the blondies.
- ½ cup Biscoff cookie butter spread (120g): An indulgent, velvety spread that enhances the taste and texture significantly.
- ½ cup packed dark or light brown sugar (100g): Brown sugar brings a deep, molasses-like sweetness to the mix.
- â…“ cup granulated sugar (67g): This sugar adds a touch of sweetness and helps create a crisp top.
- ½ teaspoon kosher salt: A pinch of salt balances the sweetness and enhances flavors.
- 1 large egg + 1 large egg yolk: The eggs contribute to a chewy texture and moisture.
- 2 teaspoons pure vanilla extract: This aromatic vanilla enhances the overall flavor profile.
- 1 cup all-purpose flour (125g): The flour forms the base of the blondies, creating a perfect chewy structure.
Step-by-Step Directions
To start your Chewy One-Bowl Biscoff Blondies, preheat your oven to 350°F (175°C). Prepare an 8×8 baking pan by lining it with parchment paper or aluminum foil, leaving some overhang for easy removal after baking.
Next, chop 8 of the Biscoff cookies into small pieces, similar in size to large blueberries. These tiny cookie chunks will add bursts of flavor throughout the blondies.
In a medium to large bowl, whisk together the melted butter (½ cup/113g) and cookie butter (½ cup/120g) until the mixture is smooth and creamy. This step is crucial for incorporating the rich flavors of the Biscoff.
Add the brown sugar (½ cup/100g), granulated sugar (⅓ cup/67g), and kosher salt (½ teaspoon) to the bowl, whisking until well combined. This mixture will create a lovely sweet base.
Incorporate 1 large egg and 1 egg yolk, along with 2 teaspoons of pure vanilla extract, whisking until thoroughly blended. Make sure to scrape the sides of the bowl to get every bit mixed in.
Now, add the flour (1 cup/125g) to the wet ingredients. Use a spatula to fold the flour into the mixture until only a bit of flour remains visible. Then, gently mix in the 8 chopped Biscoff cookies until just combined. The batter will be thick and luscious.
In your prepared pan, arrange the remaining Biscoff cookies (about 14 cookies) in an even layer at the bottom. Spoon the batter over the cookies, spreading it out evenly.
Bake in the preheated oven for about 20-25 minutes, or until the edges are set and a toothpick inserted in the center comes out with just a few moist crumbs. Avoid overbaking to keep the blondies chewy and soft.
Once baked, let them cool in the pan on a wire cooling rack for about 1-2 hours (depending on room temperature). Want them chilled? You can speed up the cooling by placing the pan in the refrigerator.
For an extra touch, melt about 1-2 tablespoons of cookie butter lightly and drizzle it over the cooled blondies for added flavor and aesthetic appeal. Cut them into your desired size and enjoy the delightful taste of Biscoff in every bite.
Tips & Tricks
- For an extra rich flavor, consider using a combination of dark and light brown sugar, which will enhance the caramel notes.
- If you want to make these blondies even more special, add a handful of chopped nuts or chocolate chips to the batter.
- Make sure not to overmix once the flour is added; a few streaks of flour will ensure the blondies stay tender.
- Store unused Biscoff cookies to enjoy alongside your blondies, or crumble them on top of each serving for added crunch.
Serving Suggestions & Pairings
These blondies are versatile and perfect for various occasions. They make a fantastic dessert for family gatherings, birthday parties, or even a cozy night in. Pair them with a scoop of vanilla ice cream or a dollop of whipped cream for an indulgent treat. They also pair wonderfully with a cup of coffee or tea, offering a delightful contrast to the sweetness of the bars.
Nutritional Information
One serving of Chewy One-Bowl Biscoff Blondies typically contains around 200-250 calories, depending on how you cut them. The bars offer a delightful balance of carbohydrates, sugars, and fats. With portions in moderation, they can be enjoyed as a treat without compromising your overall nutrition.
Storing Tips & Variations
To store your Chewy One-Bowl Biscoff Blondies, place them in an airtight container at room temperature for up to 4-5 days. If you want them to last longer, consider freezing them by wrapping individual squares in plastic wrap and placing them in a freezer-safe bag for up to three months. To reheat, simply microwave for a few seconds until warmed through.
If you want variations, consider swapping out Biscoff cookies for other favorite cookies or try adding spices like cinnamon to the batter for a twist on the classic flavor.
Conclusion
Chewy One-Bowl Biscoff Blondies are an easy and delicious recipe that everyone should try. The combination of flavors and textures makes them a perfect treat for any occasion. Don’t just take my word for it—try making them yourself and experience the satisfying blend of chewy, sweet, and spicy that will have you coming back for more! Share your experience with this delightful recipe in the comments below, and let’s celebrate the joy of baking together.
FAQs
Can I use a different type of cookie butter?
Yes, feel free to experiment with different flavors of cookie butter or nut butters based on your preferences.How can I tell when the blondies are done baking?
The edges will appear set while the center will still be slightly soft. A toothpick inserted should come out with a few moist crumbs.Can I make these blondies gluten-free?
Absolutely! Substitute the all-purpose flour with a 1:1 gluten-free flour blend for a delicious gluten-free version.What should I do if my blondies turn out too dry?
Make sure to monitor the baking time closely. If they do turn out a bit dry, serve them with a scoop of ice cream or drizzle with extra cookie butter to add moisture.Can I double the recipe?
Yes! Simply double the ingredients and bake in a 9×13 inch pan while adjusting the baking time as necessary. Keep an eye on them to prevent overbaking.

Chewy One-Bowl Biscoff Blondies
Ingredients
Main Ingredients
- 22 cookies Biscoff or Speculoos cookies, divided Provides a unique flavor profile with caramel and spice notes.
- ½ cup unsalted butter, melted Adds richness and moisture.
- ½ cup Biscoff cookie butter spread Enhances taste and texture.
- ½ cup packed dark or light brown sugar Brings deep, molasses-like sweetness.
- â…“ cup granulated sugar Adds sweetness and helps create a crisp top.
- ½ teaspoon kosher salt Balances sweetness and enhances flavors.
- 1 large egg Contributes to chewiness.
- 1 large egg yolk Adds moisture.
- 2 teaspoons pure vanilla extract Enhances overall flavor.
- 1 cup all-purpose flour Forms the base of the blondies.
Instructions
Preparation
- Preheat your oven to 350°F (175°C) and prepare an 8×8 baking pan by lining it with parchment paper or aluminum foil.
- Chop 8 of the Biscoff cookies into small pieces, similar in size to large blueberries.
- In a medium to large bowl, whisk together the melted butter and cookie butter until smooth and creamy.
- Add the brown sugar, granulated sugar, and kosher salt to the bowl, whisking until well combined.
- Incorporate the egg and egg yolk, along with vanilla extract, whisking until thoroughly blended.
- Add the flour to the wet ingredients and fold until only a bit of flour remains visible. Gently mix in the chopped Biscoff cookies.
Baking
- Arrange the remaining Biscoff cookies at the bottom of the prepared pan and spoon the batter over evenly.
- Bake in the preheated oven for about 20-25 minutes, or until the edges are set and a toothpick comes out with a few moist crumbs.
- Let cool in the pan on a wire cooling rack for about 1-2 hours before slicing.
- For added flavor, drizzle melted cookie butter over the cooled blondies before cutting.














