Prepare a pot with water and bring to a boil.
Blanch the fish balls for 10 minutes and drain.
While blanching the fish balls, clean and chop the onions, carrots, and potatoes.
Fry the vegetables in a pan or pot with cooking oil until moist and tender.
Then, add two tablespoons of curry sauce and combine well with the vegetables.
Pour 250ml water and let it cook for 5 minutes while covered.
When the sauce is boiling after 5 minutes, add the fish balls, coconut milk, and cornstarch slurry. Give it a good mix.
After boiling, insert the fish balls into the bamboo skewers and drizzle some tomato sauce on top of the fish balls.