Step 1

Line a slice tin with baking paper and set aside.

Step 2

Place the Clinkers and biscuits into the Thermomix bowl and pulse approximately 5-10 times until only small chunks remain (pulse less if you prefer it to be slightly chunkier). Set aside in a separate bowl.

Step 3

Add the cubed butter and condensed milk to the Thermomix bowl.

Step 4

Melt on 50 degrees, speed 2 for 4 minutes, stirring regularly (if there are still any lumps, melt it for a little longer).

Step 5

Return the Clinkers and biscuit chunks to the Thermomix bowl.

Step 6

Mix on reverse speed 2 for 30 seconds (or until totally combined).

Step 7

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

Step 8

Grate the chocolate on Speed 5 for 10 seconds.

Step 9

Scrape down the bowl and melt on 50 degrees, speed 2 for 3-5 minutes (scraping down the sides regularly).

Step 10

Pour chocolate over the slice.

Step 11

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

Step 12

Take the slice out of the fridge and leave for 20 minutes before slicing (this way your chocolate will be less likely to crack).

Step 13

Cut the slice into squares.