Start by chopping a double quantity of onions, celery and carrots ... cook and lots of them are well suited to cooking ahead. On the top rack of the oven, roast a tray of chopped veg, which ...

Preheat the oven to 240C/475F/Gas 9. Begin by removing the tough outer layers of the celery, then pare the outside of the root off, but leave it attached. Now cut across the celery about 9cm/3½in ...