1. Wash and rinse the riblets in warm water with salt. Then, add them to a bowl and marinate them with fish sauce, sugar, and pepper for 10 minutes. Cut the tomatoes, white onion, pineapple, and green pepper into small pieces.

2. Heat up a pan with oil and deep-fry the ribs for 10 minutes. Set them aside.

3. In a pan, add 1 tbsp of frying oil and put in the tomatoes, pineapple, and green pepper. Cook for 2 minutes. Then, add the ribs and season them with the listed ingredients. Gently stir for about 5 minutes and transfer to a plate. Enjoy it with rice or lettuce!