Crush the biscuits until they look like lumpy sand. (I do mine in a food processor because I'm lazy!) Whip your cream.
Mix with the melted butter and press into your 7" tin.
Gently melt the 2 Terry's Chocolate Oranges in a glass bowl over a pan of boiling water. Stir until smooth and then put to one side and allow to cool for 5 minutes while you get on with the next step.
Combine the whipped double cream, cream cheese, icing sugar, lemon juice and orange essence (if using). Fold in gently until fully combined. Add the cooled melted Chocolate Oranges and stir thoroughly.
Smooth on top of the biscuit base and flatten the top with the back of a spoon or a palette knife if you have one.
Put into the freezer for 2 hours, fridge for four hours, or leave over night if you are not in a rush.
Bring out of the fridge and remove from the tin.
Melt your white chocolate in a glass bowl over a pan of boiling water, colour the white chocolate with a tiny amount of gel colouring and allow to cool very slightly before drizzling over the cake in zigzags.
Pipe remaining whipped cream and decorate with Chocolate Orange segments.
Share and enjoy!