The steps to make fried fish nuggets crispy and delicious are as follows:

1. Add green onions, ginger slices, salt, pepper and cooking wine to the fish nuggets, mix well and marinate 15 minutes.

2. Add one spoonful of flour, one spoonful of cornstarch, one egg, and water to the basin. Stir evenly and let it sit for 5 minutes.

3. Take out the ingredients from the fish pieces, pour in the batter, stir evenly, and heat the oil in the pan.

4. When the oil is 50% hot, add the fish pieces and touch them lightly with chopsticks to prevent the fish pieces from merging.

5. After frying the fish pieces for three to five minutes, the skin will turn golden brown. Take the fish pieces out and let them cool.

6. Heat the oil again and fry the fish pieces for 30 seconds to increase the crispy texture. Take them out and serve on a plate.