It does need to be put into the fridge for at least a couple of hours to become well chilled .You could add a squeeze of lemon juice and some finely grated lemon rind, Sometimes I also sprinkle it lightly with a mixture of brown sugar and cinnamon .
6 sweet apples ( about 800gm) peeled and sliced
3 tbsp of water
2 egg whites
1-2 tbsp of castor sugar
Put apples in microsafe dish with 3 tbsp of water.
Cover with a plate and microwave for about 10 minutes (stirring once) until the apples are tender.
Leave to cool for a while and then whizz in a food processor to make a smooth puree.
Beat 2 egg whites with 1-2 tablespoons of castor sugar until thick. Stir a little of the eggwhite into the apple puree to lighten it and then scoop in the rest.
Ladle into small cups or glasses and chill it in the fridge for a couple of hours before serving.