• Preheat the oven to 160 degrees celsius (fan-forced) and line a 20cm square baking dish with baking paper.
• In a large saucepan (you want it to be big enough to add the extra ingredients to later), melt the butter, cocoa and sugar over a low heat.
• Remove the saucepan from the heat and add the vanilla extract and egg and whisk the mixture as you go.
• Sift the flour into the saucepan and whisk to combine.
• Transfer the brownie mixture into the prepared baking dish and gently smooth the surface.
• Spoon dollops of Biscoff Spread onto the top of the brownie mixture and use a butter knife to swirl through.
• Crumble the Biscoff Biscuits and sprinkle over the top of the brownie.
• Place into the pre-heated oven and bake for 35 minutes.
• Allow the brownie to cool before slicing into pieces to serve.

Thermomix Instructions

• Preheat the oven to 160 degrees celsius (fan-forced) and line a 20cm square baking dish with baking paper.
• Add the butter, caster sugar and cocoa to the Thermomix bowl and cook for 3 minutes, 70 degrees, speed 2. If the butter hasn't quite melted, cook for a further 1 minute, 70 degrees, speed 2.
• Add the vanilla extract, eggs and plain flour to the Thermomix bowl and mix for 10 seconds, speed 5 to combine.
• Scrape down the sides of the Thermomix bowl and mix for a further 5 seconds, speed 5.
• Transfer the brownie mixture into the prepared baking dish and gently smooth the surface.
• Spoon dollops of Biscoff Spread onto the top of the brownie mixture and use a butter knife to swirl through.
• Crumble the Biscoff Biscuits and sprinkle over the top of the brownie.
• Place into the pre-heated oven and bake for 35 minutes.
• Allow the brownie to cool before slicing into pieces to serve.