Remove bones from the yellowtail fillets and cut into bite-size pieces. Mix the ingredients in A and marinate the yellowtail in the mixture.
2
Cut the vegetables and pineapple slices into bite-size pieces.
3
Heat oil to 170°C. Coat the yellowtail with potato starch and fry until golden brown. Drain and set aside.
4
Heat oil in a wok and cook the vegetables and pineapple. Add the ingredients in B and cook until simmering. Add the fried yellowtail. Mix the potato starch with an equal amount of water, and drizzle into the wok to thicken the sauce.