Line a slice tin with baking paper.
Crush the biscuits in a food process and put into a large bowl.
Chop 220 grams of the Turkish delight into small pieces and place in a microwave safe bowl with the butter. Cook at 30 second intervals, stirring between each 30 seconds. Depending on the brand of Turkish delight it may not completely melt and thats ok just make sure its soft and it will mix through the biscuit mix ok.
When butter has melted add condensed milk and cook for another 30 seconds.
Add the Turkish Delight mixture into the biscuits and mix through well. Pour into the prepared slice tin and smooth the top. Refrigerate while you prepare the topping.
Chop the remaining Turkish Delight into small pieces and put aside.
Add the chocolate to a microwave safe container and melt in 30 second bursts until its melted. Don't be temped to do it for longer as chocolate can burn very quickly.
Pour the melted chocolate over the top of the slice and then decorate with the chopped Turkish delight. Place in fridge for 2hrs before slicing.
You can store in the fridge for up to a week. I freeze mine for up to a month when making at Christmas time.