Introduction
Biscoff Brownies with Swirl Topping are the ultimate fusion dessert, bringing together the rich, fudgy decadence of classic chocolate brownies with the sweet, spiced warmth of Lotus Biscoff spread. Each bite offers a luscious combination of deep cocoa flavor and caramelized cookie butter notes, made even more indulgent with a marbled swirl of melted Biscoff on top. This dessert is perfect for those who crave bold flavors and satisfying textures, offering the chewiness of a brownie with the creamy, slightly crunchy appeal of Biscoff. Whether baked for a celebration, a cozy night in, or as a crowd-pleaser for a potluck, these brownies stand out for their uniqueness and mouthwatering aroma. They’re simple enough for beginner bakers yet impressive enough to be a centerpiece dessert, striking a perfect balance between comfort food and gourmet delight.
The History of Biscoff Brownies with Swirl Topping
The traditional brownie, a staple of American baking, dates back to the early 20th century and has since become one of the most beloved desserts worldwide. Its simplicity, adaptability, and universally adored chocolate flavor have led to countless variations. On the other hand, Biscoff—short for “biscuit + coffee”—originated in Belgium, where the Lotus company began producing speculoos cookies in the 1930s. These crisp, spiced biscuits gained international popularity over the decades, particularly when transformed into a creamy spread in the early 2000s. As the spread grew in popularity through cafés, airline snacks, and eventually the home baking scene, bakers began incorporating Biscoff into more recipes—including the ever-versatile brownie. The Biscoff brownie with a swirl topping is a relatively recent creation, emerging through the rise of social media baking culture, where food bloggers and home bakers began experimenting with cookie butter as a new way to enhance desserts. The result is a rich, modern hybrid dessert that marries two culinary cultures and satisfies a global sweet tooth with every gooey square.
Ingredients Breakdown
- 200g (7 oz) dark chocolate, chopped: Adds deep, intense cocoa flavor and fudgy texture.
- 175g (6.2 oz) unsalted butter: Creates richness and helps melt the chocolate into a smooth batter.
- 3 large eggs: Provide structure and richness.
- 200g (7 oz) caster sugar: Adds sweetness and helps create a crackly brownie top.
- 75g (2.6 oz) light brown sugar: Adds moisture and a slight caramel depth.
- 100g (3.5 oz) plain flour: The base dry ingredient to give the brownies structure.
- 30g (1 oz) cocoa powder: Intensifies the chocolate flavor and contributes to the fudgy consistency.
- 1/2 tsp salt: Enhances the flavors and balances sweetness.
- 200g (7 oz) Biscoff spread (smooth or crunchy): Swirled into the batter and used on top for signature flavor and a creamy, spiced finish.
- Crushed Biscoff biscuits (optional topping): Adds texture and reinforces the cookie flavor visually and texturally.
Step-by-Step Recipe
- Preheat your oven to 180°C (350°F) and line an 8×8-inch baking tin with parchment paper, leaving some overhang for easy removal.
- In a heatproof bowl over a saucepan of simmering water (or in the microwave in 30-second bursts), melt the dark chocolate and butter together until smooth. Set aside to cool slightly.
- In a large mixing bowl, whisk together the eggs, caster sugar, and brown sugar until pale and slightly thickened—this helps create a shiny brownie top.
- Slowly pour in the cooled chocolate mixture and whisk until well combined.
- Sift in the plain flour, cocoa powder, and salt, folding gently with a spatula to avoid overmixing.
- Pour the brownie batter into the prepared tin and smooth out the top.
- Warm the Biscoff spread slightly in the microwave (about 20–30 seconds) until pourable. Drop spoonfuls over the brownie batter and use a knife or skewer to create swirls across the surface.
- Optionally, sprinkle crushed Biscoff biscuits over the top for added crunch.
- Bake for 25–30 minutes, depending on how gooey you like your brownies. The edges should be set, and the center just slightly wobbly.
- Allow to cool completely in the tin before slicing for the best texture. For clean cuts, chill the brownies in the fridge for an hour and wipe your knife between slices.
Tips for the Perfect Biscoff Brownies with Swirl Topping
Use high-quality dark chocolate for a richer and smoother flavor, as it forms the foundation of your brownie. Allow the melted chocolate and butter mixture to cool slightly before adding to the eggs to prevent scrambling. Whisking the sugars with the eggs until pale and airy helps create a classic, slightly crisp brownie top. Avoid overmixing the batter once you add the flour to maintain a soft and fudgy interior. When swirling the Biscoff on top, don’t overdo it—less swirling helps preserve distinct ribbons of flavor. For neater presentation, use a skewer or the tip of a butter knife to gently marble the spread without dragging too deep. If you like an extra gooey center, lean towards the shorter end of the baking time and allow the brownies to firm up as they cool. Store the brownies in an airtight container at room temperature for 3–4 days or refrigerate for up to a week. You can also freeze them for up to 2 months—just wrap tightly in cling film and foil.
Variations and Customizations
There are endless ways to customize your Biscoff brownies. Add white or milk chocolate chips to the batter for a contrast in sweetness and texture. Stir in chopped toasted pecans or walnuts for a nutty crunch. Mix in swirls of peanut butter or Nutella alongside the Biscoff for a layered flavor explosion. Use Biscoff crunchy spread instead of smooth for added texture in every bite. For a cheesecake-style variation, add dollops of cream cheese along with the Biscoff before swirling. Make brownie cups by baking the batter in muffin tins for individual portions. For a gluten-free version, substitute the flour with a 1:1 gluten-free blend. To reduce sugar, use a sugar alternative in place of the caster and brown sugar, or decrease the amount slightly, though this may affect texture. If you’re serving to a crowd, double the recipe and use a 9×13-inch pan for more portions. You can also drizzle melted white chocolate over the cooled brownies for a decorative and flavorful finish.
Health Considerations and Nutritional Value
Biscoff Brownies with Swirl Topping are a rich and indulgent dessert, high in sugar, fat, and calories. A typical square may contain between 300–400 calories, depending on the size of the slice and specific ingredients used. The base includes butter, chocolate, and sugar—all of which contribute to the dense, fudgy texture but also make the treat best enjoyed in moderation. Biscoff spread adds additional sugar and fat, as well as a boost of flavor, making it important to consider portion sizes. However, they can be modified to suit certain dietary needs: using plant-based butter, dairy-free chocolate, and egg replacements can make the recipe vegan-friendly. Gluten-free flour can be used for those with celiac disease or gluten intolerance. For those tracking macros or calories, using a recipe calculator can help adjust the ingredients accordingly. Though not considered a “health” food, these brownies can be enjoyed as part of a balanced lifestyle, especially when savored mindfully and shared with others.
FAQ
Can I make these brownies ahead of time? Yes, they actually taste better the next day after the flavors have had time to settle.
Can I use milk chocolate instead of dark? You can, but it will make the brownies sweeter and less rich.
Can I freeze these brownies? Absolutely—wrap them tightly and freeze for up to 2 months. Thaw at room temperature before serving.
Do I need to refrigerate the brownies? Not necessary, but storing in the fridge makes them firmer and easier to slice.
Can I use crunchy Biscoff spread? Yes, it adds a lovely texture contrast.
Can I add more Biscoff inside the batter? Definitely—stir in a few spoonfuls for an even more intense Biscoff flavor.
Why are my brownies cakey instead of fudgy? You may have overbaked them or used too much flour. Stick to the recipe and check for doneness early.
What’s the best way to get clean slices? Chill the brownies first and use a sharp knife, wiping between cuts.
Can I double the recipe? Yes, just use a larger pan (like 9×13 inches) and adjust the baking time slightly.
Is there a vegan version? Yes, use dairy-free butter and chocolate, and replace the eggs with flax eggs or a commercial egg replacer.

Biscoff Brownies with Swirl Topping
Ingredients
- 200 g dark chocolate
- 200 g unsalted butter
- 4 medium eggs or 3 large
- 275 g sugar caster or light brown
- 90 g plain flour
- 35 g cocoa powder
- 200 g chocolate chips
- 150 g chopped Biscoff biscuits
- 200 g Biscoff spread
Instructions
- Preheat your oven to 180ºC (160ºC fan) and line a 9×9-inch square baking tin with parchment paper. Melt the dark chocolate and butter together, then set aside to cool slightly while you prepare the rest of the batter. Whisk the eggs and sugar until the mixture becomes thick and mousse-like — it should double in volume, lighten in color, and when you lift the whisk, the mixture will leave a trail that slowly disappears. Gently fold the cooled chocolate and butter mixture into the egg and sugar mixture, being careful not to deflate the air you’ve whipped in. Next, sift in the plain flour and cocoa powder and fold them in gently as well. Stir through the chocolate chips and chopped Biscoff biscuits, then pour the batter into the prepared tin. Using two teaspoons, drop dollops of Biscoff spread evenly across the top — about 15 dollops works well. Bake in the oven for 25–30 minutes or until the center has a slight wobble when you gently shake the pan. Allow the brownies to cool completely in the tin, then chill them in the fridge for a couple of hours to firm up before slicing.