Step 1

Preheat oven to moderate, 180°C (160°C fan-forced). Lightly grease a medium ovenproof dish.

Step 2

In a medium saucepan, combine apple and water. Bring to boil on high. Reduce heat to medium. Simmer, covered, 4-5 minutes, until almost tender.

Step 3

Add rhubarb and sugar. Simmer, stirring, 2-3 minutes, or until rhubarb is just tender. Drain excess liquid. Spoon mixture into prepared dish.

Step 4

To make crumble: Sift flour into a medium bowl. Rub in butter using fingertips until mixture resembles breadcrumbs. Stir remaining crumble ingredients through. Sprinkle evenly over fruit.

Step 5

Bake 25-30 minutes, until golden and bubbly. Serve warm with cream or ice-cream.