Thai beef curry

INGREDIENTS

• 2-3 tbsp groundnut oil
• 2kg beef short ribs (bone-in ribs left whole), or brisket, cut into large chunks
• large bunch coriander
• 2 lemongrass stalks, 1 bashed, 1 roughly chopped
• 3 garlic cloves , chopped
• 1-2 green chillies , roughly chopped, deseeded if you like
• 2cm-piece galangal or ginger, peeled and chopped
• 50ml rice wine vinegar
• 50ml fish sauce
• 2 tbsp palm or light brown sugar
• 400g can coconut milk
• 2 star anise
• 6 kaffir lime leaves
• juice 2 limes , plus wedges to serve