Crab stock

Ingredients

• 1 live cock crab, weighing approx. 2kg
• Groundnut or grapeseed oil
• 400g dry white wine
• 150g dry white vermouth
• 300g peeled and finely sliced onion (approx. 4 medium onions)
• 2 cloves of garlic, peeled and finely sliced
• 500g peeled and finely sliced carrot (approx. 6–7 large carrots)
• 150g finely sliced button mushrooms
• 50g finely sliced celery (approx. 2 sticks of celery)
• 75g finely sliced fennel
• 190g roughly chopped tomato (approx. 3 medium tomatoes)
• 1 lemon, finely sliced
• Pinch of saffron strands
• 2 star anise
• 3 cloves