I needed a simple recipe to use up some lemons I bought, and found many versions of this uncooked tray bake [I suppose it's not really a tray bake as it's not baked, but it's made in my Delia tray bake tin!]. I played around with several recipes till I made exactly what I wanted - a good lemony flavoured slice with a decent amount of coconut and a lemon icing. It was perfect to make with my grandsons over the w/e.
You put 125ml of condensed milk in a pan with 125g butter and stir till the butter has melted. In a food processor or using a plastic bag and a rolling pin, break a 250g packet of Nice biscuits into crumbs and put into a bowl with 1 tspn of grated lemon zest, 1 tspn lemon extract and 85g dessicated coconut. Add the butter mixture and stir together till well mixed.
Line a baking tin 28x18cm with parchment paper and press the mixture in. Put in the fridge for about an hour.
Make the icing - 250g icing sugar, 3 tbspn lemon juice and 15g butter - beat together to make a smooth icing. When the slice is firm and cool, pour icing on top, spread evenly then sprinkle 2 tbspn dessicated coconut on top. Cut into squares when the icing has set.