Instructions: Grease a 20cm (8 inch) spring form tin. Place on a round of foil about 10cm larger than the diameter of the tin. Press the foil up the sides to seal tightly.

Mix the melted butter with the crushed gingernuts and press into the base of the tin and leave to set in the fridge.

Mix the cream cheese until smooth and add the sugar, lemon rind and oil or juice. Beat in the eggs one at a time until blended thoroughly. Spread the lemon curd over the base to form a smooth layer. Pour the cheese mixture over the curd layer.

Bake in a bain marie for 1 1/2 hours at 170 C/335 F/gas mark 3 until golden brown. Leave to cool in the tin in the oven. Once removed from the tin chill in the fridge for 3-4 hours before serving.

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