In a pot, melt butter over medium heat and fry the onion and pumpkin until soft.
Add in the New Zealand Luv'ya Ambrosia Apple, tom yum paste, canned tuna, coconut milk, chicken stock ginger and lemongrass. Stir and let simmer for 15 minutes.
Remove the ginger and lemongrass, add in the coriander leaves and stir. Transfer the
soup into a blender and blend to a fine consistency.
In a separate pot, pour in the blended soup and let it simmer. Season with salt and sugar.
Serve the soup with diced New Zealand Luv'ya Ambrosia Apple, diced crispy fried salted fish, coconut milk and chilli oil.