1 tablespoon good olive oil
3 tsp goose fat
600g shin beef, cut into large chunks
100g smoked streaky bacon, sliced
350g shallot or pearl onions, peeled
250g chestnut mushroom (about 20)
2 garlic clove, sliced
1 bouquet garni (See know-how below)
1 tbsp tomato purée
750ml bottle red wine, Burgundy is good