- Place the biscuits and sugar in a food processor and process until finely chopped. Add the butter and process until combined. Press the mixture evenly over the base and side of a 3cm-deep, 20cm (base measurement) round glass or ceramic pie dish. Place in the fridge for 30 minutes to chill.
- Use a stand mixer with whisk attachment to whisk the condensed milk, cream cheese and lemon rind until smooth. Add the cream. Whisk until the mixture is thick. Gradually whisk in the lemon juice until just combined (do not overbeat). Spoon the mixture into the prepared biscuit base. Place in the fridge overnight to set.
- Top the pie with whipped cream and sprinkle with lemon rind. Dust with a little icing sugar, if you like. Serve.