Step 1

Grease and line an 18X28cm rectangular slice tin with baking paper and set aside.

Step 2

Melt the butter and condensed milk in a microwave-safe bowl on 50% power, 3-4 minutes or until melted.

Step 3

Crush the Clinkers and biscuits in a food processor (or with a rolling pin) and stir through the melted butter and condensed milk mixture.

Step 4

Place into the slice tray and press the mixture down very firmly (don't worry if it feels a bit wet). Place into the fridge.

Step 5

Melt the chocolate in a microwave-safe bowl on 50% power, 3-4 minutes, stirring every 30 seconds until just melted. Pour over the slice.

Step 6

Place back into the fridge for at least two hours (preferably overnight).

Step 7

Take the slice out of the fridge and leave for 20 minutes before slicing.

Step 8

Grease and line an 18 X 28cm rectangular slice tin with baking paper and set aside.

Step 9

Place the Clinkers and biscuits into the Thermomix bowl and mix on Speed 4, 3-4 seconds or until small chunks remain. Set aside in a separate bowl.

Step 10

Add the butter and condensed milk to the Thermomix bowl. Melt for 4 minutes, 50 degrees, Speed 2, or until melted.

Step 11

Return the Clinkers and biscuit chunks to the Thermomix bowl. Mix on 30 seconds, Reverse, Speed 2, (or until combined).

Step 12

Place into the slice tray and press the mixture down very firmly. Place into the fridge.

Step 13

In a clean and dry Thermomix bowl, grate the chocolate on Speed 5, 10 seconds. Melt on 50 degrees, Speed 2, 3-4 minutes, or until melted. Pour melted chocolate over the slice.

Step 14

Place in the fridge for at least two hours (preferably overnight).

Step 15

Take the slice out of the fridge and leave for 20 minutes before slicing.