140 g digestive biscuits, roughly broken
75 g butter, melted
For the filling
300 g condensed milk
200 g cream cheese
150 ml thickened cream
finely grated zest 3 limes, plus extra to serve
3 tbsp lime juice (from 2 limes)
For the cranberry compote
200 g frozen cranberries
100 g golden caster sugar
1 tbsp cornflour
- Line a 900g loaf tin with a large piece of foil. Press down well into the base and sides of the tin, and leave plenty overhanging the edges. Put the biscuits in a freezer bag and bash to crumbs with a rolling pin. Mix with the melted butter and tip the crumbs into the prepared tin – press firmly into the base to create an even layer. Chill while the filling is made.
- Use an electric whisk on a medium setting to beat the condensed milk, cheese and cream together until smooth and thickened – this will take around 2 mins. Add the grated zest and juice, and beat slowly until the cheese mixture forms soft peaks.
- Spoon the lime mixture over the biscuit base. Cover lightly with the overhanging foil and seal firmly to keep out as much air as possible. Wrap in a second layer of foil, pop into a large freezer bag and freeze overnight.
- To make the cranberry compote, put the cranberries, sugar and 150ml cold water in a saucepan and bring to a simmer. Cook for 5 mins, stirring occasionally, until the cranberries are softened but holding their shape. Mix the cornflour with 2 tbsp cold water until smooth, then stir into the fruit. Cook for another 2 mins, stirring regularly. Leave to cool, then cover and chill. Can be frozen at this stage.
- Turn out the frozen cheesecake onto a platter or board and leave to thaw for 30 mins, then carefully peel off the foil. Warm the cranberry compote gently and serve with the sliced semifreddo.