Make the crumble first (so the peeled apples do not have too long to go brown)

Preheat the oven to 200 degrees C

Place the flour in a large bowl

Using your fingertips, rub the margarine into the flour, until it is a fine crumb

Add the sugar and stir

Peel the apples and slice into chunks

Place in the bottom of a casserole or baking dish

Sprinkle with water, sugar and cinnamon

Place the crumble evenly on top of the apple

Bake in the oven for about 45 minutes or until the crumble is golden brown