Step 1

Turn on the oven to 200°C (400°F, gas mark 6).

Step 2

Cut up any strawberries that are too big and place into a shallow ovenproof dish. Sprinkle over the caster sugar and Balsamic vinegar.

Step 3

Place the flour into a large bowl and cut up the margarine into it. Rub together with clean, cool hands until the mixture resembles fine breadcrumbs. Mix in the sugar and oatmeal to form a crumble topping. Evenly spread the crumble over the strawberries.

Step 4

Place on a baking sheet in the oven and cook until crumble is lightly brown and the fruit is beginning to bubble round the sides (30-35 mins).

Step 5

Serve hot with cream or ice cream or cold with creme fraiche.