1. Onion diced and set aside
2. Pineapple cored and cut into small pieces
3. I bought oily tofu with a tender core
4. Cut fish balls in half
5. Pour some oil into the pot, add onions and sauté
6. Pour the fish balls and stir fry
7. Add oily tofu and sprinkle with salt
8. Add oyster sauce and stir fry
9. Pour in tomato sauce and white sugar
10. Stir-fry evenly, add a small bowl of water, simmer for 6 minutes on medium-low heat
11. Finally, pour in the pineapple and stir fry for one minute to get out of the pan.
Tips:Pineapple is not suitable for simmering, so it is enough to stir-fry for one minute.
