These Biscoff brownies are unique, with a delicious caramel flavor. They are soft and moist with a lotus biscuit base and topping, adding superb texture. They're also perfect for a bake sale because they're so moreish and easy to make!
Preheat the oven to 180c (355f). Line an 11-inch by 7-inch (28cm by 18 cm) or 8-inch by 8-inch (20cm by 20cm) square pan with parchment paper or alternatively use a non-stick baking pan.
In a medium bowl, mix together cocoa powder, flour and salt, then place the bowl to the side.
In a medium saucepan or a microwavable heatproof bowl, combine the butter and the chocolate. Heat it in a double boiler, and stir with a wooden spoon or silicone spatula until it's all melted and combined. Alternatively, place a microwavable bowl in the microwave and melt it in 20-second increments, stirring each time.
In a large mixing bowl, beat the granulated sugar and eggs together for 1 minute until well combined. Fold in the melted chocolate into the egg mixture. After, gently fold in the cocoa mixture until just combined (make sure to not overmix).
Evenly pour three-quarters of the crushed Biscoff biscuits into the baking pan. Next, pour the brownie batter into the baking pan.
Add dollops of Biscoff cookie butter on top of the brownie batter. Gently press the Biscoff cookie butter dollops into the brownie batter with the back of a tablespoon. To create a swirl on top of the brownies, use a knife and gently run it over the Biscoff cookie butter dollops in a swirling motion. Sprinkle the rest of the Biscoff biscuits on top of the Biscoff brownie batter.
Bake the brownies for 25-30 minutes or until a skewer inserted into the brownies comes out with a few moist crumbs still sticking to it.
Leave the brownies to cool completely before taking them out of the baking pan and slicing them.
Notes
Baking TipTo test if the brownies are ready, insert a skewer, there shouldn't be too much mixture clinging to it when removed. The brownies will set a little more whilst cooling.Storage TipThese Biscoff brownies can be stored in an airtight container at room temperature for up to 4 days. They can also be stored in the refrigerator in an airtight container for up to 1 week.