1 large onion, finely chopped
1 thyme sprig
1 tbsp English mustard
400g tin chopped tomatoes
500g/1lb 2oz dried haricot beans, soaked overnight, drained and rinsed
dash Worcestershire sauce (optional)
dash Tabasco (optional)
1 bay leaf
4 cloves
1 blade mace
3 tbsp black treacle or molasses
100g/3陆oz smoked streaky bacon or pancetta, cut into thick slices
300g/10陆oz piece pork belly, cut into thick chunks
100ml/3陆fl oz red wine, sherry or bourbon (optional)