It’s a day for comfort food. The last of the snow has melted but it’s still very chilly, and I’m in the mood for some melted, bubbling cheese. Cauliflower cheese is a British classic, served on its own or as an accompaniment to a main course. It’s usually made with cheddar cheese but you can use any hard cheese with a strong flavour. This variation on this classic dish has a layer of sweet fried onions and chard.