Oh Mel, you don't know what you are getting yourself in for with this one - seriously, if you don't eat the lot in a day there is something wrong with you LOL. Here's my recipe;

Jelly Slice
Mix 100g melted butter with 250g crushed plain biscuits. Press into a lined 7 x 11 inch shallow tin and refrigerate until firm. Dissolve an 85g pack of raspberry Jelly (but any colour will do) crystals in 1 cup boiling water, stir in 1/2 cups cold water and set aside. Dissolve 2 teaspoons gelatine in 1 tablespoon hot water. Beat 400g condensed milk and 1/3 cup lemon juice for 1 minute, then beat in the gelatine. Spread over the base and refrigerate with the jelly for 30 mins - the jelly should be syrupy not set. Pour the jelly over the slice and refrigerate again for 3 hrs or until firm. Makes 15 pieces.

Nutritional info per piece: Protein 4g, fat 10g, carbs 30g dietary fibre 0g, cholesterol 30mg, 980kJ (235cal)

One tip is to mix the gelatine in really quickly or it can go stringy and the fillin wont set properly.