These oven-baked beans are cooked slowly to create a richly flavoured vegetable dish – a revelation if you've only ever eaten the canned variety. Serve alongside grilled meat, together with potatoes or bread.
Instead of haricot beans, you can substitute other dried beans, such as black-eyed beans or cannellini beans.
Treacle is a sticky fluid refined from molasses. Though it is primarily carbohydrate in the form of sugar, black treacle can provide useful amounts of potassium, calcium and iron.