Ingredients

• 75g caster sugar
• 5 medium custard apples, halved
• thinly pared lime rind to decorate

Method
Place the sugar in a pan with 300ml water; bring to the boil, stirring to dissolve the sugar.
Reduce the heat;simmer for 10 minutes until it forms a thin syrup. Set aside to cool slightly.
Scoop out custard apple flesh. Press through a sieve to remove seeds. Place the sugar syrup and flesh in a food processor; blend until smooth.
Pour into a freezer container and freeze for 2 hours.
Remove from freezer, mash with a fork. Freeze again until firm.
Serve scoops insmall bowls decorated with lime rind.