Seafood Tom Yum Soup (Tom Yum Thale)

Ingredients

• 10 tail-on prawns, deveined
• 250g calamari, cut into rings
• 250g rockling fish, cut into bite-sized pieces
• 250g mussels
• 2 tbsp tom yum paste
• 3 ½ cups water or chicken stock
• 8 fresh kaffir lime leaves, halved
• 2 lemongrass (white parts only, cut into sections)
• 1 cup fresh button mushrooms, halved
• 1 red onion, quartered
• 2 tbsp fish sauce
• 2 large red chillies, halved
• 1 bird's eye chilli, chopped
• 6 tbsp lime juice
• Fresh lime (sliced, to garnish)