Chinese braised beef with ginger

INGREDIENTS

• 2 - 3 tbsp vegetable or sunflower oil
• 1¼kg beef shin or brisket , cut into very large chunks
• 2 onions
• 50g ginger
• 3 garlic cloves
• small bunch coriander
• 2 tsp Chinese five-spice powder
• 6 whole star anise
• 1 tsp black peppercorns
• 100g dark brown muscovado sugar
• 50ml dark soy sauce
• 50ml light soy sauce
• 2 tbsp tomato purée
• beef stock
• thumb-sized chunk ginger , shredded into matchsticks
• 1 tbsp vegetable or sunflower oil
• cooked jasmine rice