Line a 28cm x 18cm slice tray with baking paper making sure you leave paper hanging over the sides to help remove the slice from the tin once set.
Place the biscuits into your Thermomix bowl and mix fo 12 seconds, speed 7 to crush. You will need to push the biscuits down towards the blades with your spatula. Transfer to a separate bowl.
Without washing the bowl, add the butter, condensed milk and FOUR of the Turkish Delight Bars (which have been roughly chopped into 3 cm pieces) and cook for 3 minutes, 60 degrees, speed 2 to melt.
Add the crushed biscuits and mix for 10 seconds speed 5 to combine. Scrape down the sides of your Thermomix bowl and mix for a further 5 seconds, speed 4 to combine.
Pour the mixture into your prepared tray and using a metal spoon, spread slice evenly over the tray and push down to smooth the surface.
Break the milk chocolate into pieces and place it into a microwave safe bowl and cook for 30 second spurts until it has melted.
Pour the melted milk chocolate over the top of the slice and top with pieces of the remaining Turkish Delight Bars. Place the slice into the fridge for a minimum of four hours to set.
Remove the set slice from the baking tray and cut into small pieces (or large - no judgement here!) and enjoy.