400 ml (14 fl oz) carton reduced-fat fresh custard
3 tbsp icing sugar
2 limes, grated rinds only
3 ripe passion fruit, pulp and seeds only
3 egg whites
1 tbsp caster sugar
1. Preheat the oven to 190°C/375°F/Gas 5 and the grill to medium.
2. Place the custard in a large bowl and stir in the icing sugar, lime rind and passion fruit.
3. In a separate bowl, whisk the egg whites until stiff. Using a large metal spoon, gently fold the egg whites into the custard. Carefully transfer the mixture to a large soufflé dish, level off the surface and sprinkle with the caster sugar.
4. Pop the soufflé under a medium grill for three minutes until the sugar melts. Transfer to the oven and bake for 20 minutes until well risen and set. Serve swiftly.