Place OREO cookies in a food processor and blend until fine crumbs. Add melted butter and pulse until combined.
Press into the base and sides of a 35 cm x 12 cm loose based tart tin. Refrigerate for 20 mins until firm.
In the bowl of a stand mixer beat the PHILADELPHIA cream cheese, icing sugar and vanilla on low speed for 2 minutes until smooth. Fold in the whipped cream and the chopped CADBURY MARVELLOUS CREATIONS chocolate.
Pour the mixture into the tart tin. Place in refrigerator for 1 hour.
Place the CADBURY MARVELLOUS CREATION bunnies along the tart and decorate with the CADBURY Mini Eggs.