4 carrots, peeled, grated
4 leeks, trimmed, cut in half lengthways, finely sliced, plus extra to serve
1 small bunch watercress, leaves only, to serve
6 tbsp quick-cook oats
salt and freshly ground black pepper
3 tbsp olive oil
1.5 litres/2陆 pints chicken or vegetable stock
1 loaf white bread, thinly sliced into 12-16 slices
400g/14oz Cheshire cheese (preferably a mixture of white and blue), grated
300g/11oz Cheshire cheese, thinly sliced into 6-8 slices
110g/4oz butter, softened