1.Preheat oven to moderate, 180°C (160°C fan-forced).
2.In a large saucepan, combine fruit, water and sugar. Mix well.
3.Bring to boil on high. Reduce heat to medium and simmer for 10 minutes, stirring occasionally, until just softened. Spoon fruit into a 2-litre baking dish. Sprinkle Anzac crumbs over to cover fruit. Dot with butter.
4.Bake for 15-20 minutes, until crisp. Serve with ice-cream, cream or custard.
Tips: The skin can be left on the apples and pears, if you prefer. This crumble can be served warm or cold.