• Line a slice tin with baking paper.
• In a microwave safe bowl add butter, chocolate and syrup. Heat in 30 second bursts, stirring in between each until everything is melted and smooth. Leave to cool.
• Crush the biscuits roughly in a food processor and place in large bowl.
• Chop Mint Aero Bar and add to the biscuits with the Mint balls.
• Add the cooled chocolate mixture to the crushed biscuits and mix well. Place into the prepared slice tin and push into the tin and try and smooth the top. Please in refrigerator while preparing the topping.

Topping

• In a microwave safe bowl melt 150 grams of chocolate in bursts of 30 seconds until melted.
• Chop the Mint Aero block into small pieces.
• Pour the melted chocolate over the base and top with the chopped Aero block.
• Refrigerate for at least 2 hours and then cut into small bars to serve.