Thai Prawn Soup

Ingredients

• 600 g prawns, cleaned and de-tailed
• 6 cups white mushrooms, cleaned and sliced
• 4 tbsp tomato purée, unsweetened
• 1 tbsp fresh ginger
• 2 lemongrass stalks, roughly chopped
• 2 juice of 2 limes
• 2 juice of 2 lemons
• 4 cloves garlic, crushed
• 8 tbsp fish sauce
• 4 lime leaves
• 4 tsp freshly chopped red chilli
• 4 tbsp fresh coriander
• 1 tsp brown sugar
• 4 cups chicken broth/stock
• 200 ml coconut milk