In a bowl, combine the tuna, water chestnuts, spring onions, ginger, cilantro, red chilli, kaffir lime leaves, and fish sauce. Mix well.
Add the beaten eggs and mix until well combined.
Form the mixture into small patties.
Heat vegetable oil in a pan.
Fry the tuna cakes until golden brown on both sides.
For the dipping sauce, combine caster sugar, fish sauce, rice vinegar, lime juice, and chopped cilantro in a bowl.
Serve the tuna fish cakes with the dipping sauce.
