Score a cross into the top of the tomatoes, cover with boiling water and leave to soak for 2 minutes, then peel off the loosened skin. Once peeled, chop the tomatoes into a small dice.
Slice the monkfish into thin bite size pieces, place into a bowl along with a pinch of salt and the rice wine and leave to marinate for 30 minutes.
Heat a casserole pot over a medium heat, add the oil along with the ginger and fry for 30 seconds, then add the spring onion whites and garlic and after a further 20 seconds add the diced tomatoes and fresh chili and a pinch of salt. Quickly stir to combine the ingredients and fry for 2 minutes.
Stir in the tomato ketchup and puree and then pour in the fish stock. Add the tofu and gently bring to a simmer, placing a lid on the pot and allowing to simmer for 10 minutes.
After 10 minutes, remove the lid, turn the heat back up to medium and add the langoustines and king prawns. After 2 minutes add the mussels and clams and once the stew is boiling add the marinated monkfish and any leftover liquid. Gently stir through the stew. After 1 more minute check the seasoning and adjust with salt and white pepper if required. Finally turn off the heat and sprinkle in the spring onion greens to garnish.
Delicious served with a hunk of your favourite crusty bread but I heartily suggest you try this with the Chinese Fried Bread, Youtiao.