Line and grease a 18cm x 32cm slice tray with baking paper and set aside.
Place the biscuits into the Thermomix bowl and crush for 8 seconds, Speed 8. Set aside in a separate bowl.
Place the butter, sweetened condensed milk and golden syrup in the Thermomix bowl and melt for 4 minutes, 60 degrees, Speed 2.
Add the crushed biscuits, coconut and licorice allsorts and mix for 10 seconds, Reverse, Speed 3, (or until combined - use the spatula to help mix).
Press the mixture into the base of the prepared pan and set aside for 30 minutes to firm.
Place the milk chocolate and vegetable or coconut oil in a clean and dry Thermomix bowl and melt for 4 minutes, 50 degrees, Speed 2.
Pour the melted chocolate over the slice and place into the fridge to set. Chill 3 hours before cutting.