Passion fruit sorbet

Our passion fruit vine is so productive I've got passion fruits coming out of my ears. My two main recipes are passion fruit curd, and this sorbet.
This recipe is a total hit. I have people fighting over tubs of it.

The recipe is from this site, (Drizzle and Dip) and I changed nothing, apart from leaving it every 2 -3 hours or so between beatings as my freezer doesn't freeze very quickly. It makes about 1 litre, enough for a standard ice-cream tub.

Ingredients
1 cup sugar
1 cup fresh orange juice
2 cups fresh passion fruit pulp (about 9-10 passion fruits)
2 large egg whites, whisked to form peaks

1. Heat orange juice and sugar over a low heat, and stir until dissolved
2. Add the passion fruit, stir and chill in the fridge
3. Freeze the mixture for 1 hour then fold in the beaten egg (preferably in a large mixing bowl)
4. Freeze again and beat every 2-3 hours until the mixture is frozen and well-mixed.
5. Leave to thaw for 10-15 mins before serving.