Cookies & Cream Slice

Ingredients
12 oz Oreo biscuits
5 oz unsalted butter, melted
2 tsp powdered gelatine
14 oz cream cheese
10 oz thickened cream
1 tsp vanilla extract
1/2 cup caster sugar
7 oz white chocolate, melted, cooled slightly
Melted dark chocolate, to drizzle
Directions
Line a 1.5 inch-deep, 7 x 10 inche lamington pan with plastic wrap.
Place 8 oz of the biscuits in a food processor and process into fine crumbs. Add the butter, process to combine, then press the mixture into the base of the pan. Chill in the fridge for 30 minutes.
Sprinkle the gelatine over 1/4 cup cold water in a heatproof cup. Place the cup in a pan of gently simmering water and stir the gelatine to dissolve.
Place the cream cheese, cream, vanilla and caster sugar in the bowl of an electric mixer, and beat until smooth. Stir in the gelatine mixture and melted white chocolate.
Roughly chop the remaining biscuits and stir through, then pour the cream cheese mixture over the chilled base.
Cover with plastic wrap and return to the fridge to set overnight.
Drizzle with the melted dark chocolate just before serving, then slice in the pan.