Combine cookies and melted butter in a mixing bowl and mix well. Press cookies mixture into the base and sides of 26 cm loose bottom tart tin and set in the fridge for 10 minutes.
In a medium bowl, combine NESTLÉ® Cream , melted chocolate, orange juice and orange zest. Pour the dissolved Gelatine over with constant stirring then pour evenly over the prepared base.
Set in the fridge for 3 hours or until filling is firm.