Stir the biscuit crumbs into the melted butter and press into the base of a 20 cm spring form tin.
Dissolve the jelly in the boiling water, add the lemon rind and juice and cool until the point of setting. Gradually whisk the cooled jelly into the Philadelphia.
Whip the cream until it just holds its shape and gently fold into the Philadelphia mixture. Pour over the crumb base and chill for 2-3 hours until set. Decorate with fresh fruit before serving.