Vegan Biscoff Tiffin

• 4 digestive biscuits (make sure they're vegan-friendly)
• 250 g Biscoff biscuits (8.8oz)
• 120 g Dairy-free margarine (½ cup)
• 3 Tablespoons golden syrup (sub for agave nectar or maple syrup)
• 2 Tablespoons cocoa powder
• 150 g semi-sweet chocolate 5.2oz, dairy-free
• 50 g white chocolate chips 1.7oz, optional, dairy-free, or chunks

For the topping:

• 150 g white chocolate 5.2oz, vegan
• 2-3 Tablespoons Biscoff spread the smooth kind, melted
• 1-2 Biscoff biscuits crushed into crumbs