Heat the oil in the wok. Fry the onion and ginger in it. Add paprika, garlic and spring onion and sauté gently for a few minutes. Dust the curry powder over it and sweat briefly. Deglaze with the coconut milk and simmer for a few minutes, possibly adding 2 kaffir lime leaves. Add the pineapple and season with a little pineapple juice from the can, salt and soy sauce.
Mix the cornstarch with a little water and add to the simmering curry, stir well and let thicken. Now add the Chinese cabbage and simmer for a few minutes until it is soft. If necessary, season again and remove the lime leaves.