How can I fry fish to crisp bones?

After the fish is fried twice, the bones will be brittle. Specific practices are as follows:

The materials that need to be prepared in advance are: herring 1500g, salt, cooking wine, soy sauce, fennel, soy sauce, sugar, ginger and pepper.

1. Scrape the internal organs of herring, clean it, divide it into several large pieces, add salt, fragrant leaves, white wine, ginger and light soy sauce for about eight hours.

2. Wash salted fish, then cut into pieces and put it in a ventilated place to dry.

3. Add oil to the pot and heat it.

4, add fish fillets, start frying, fry for a while and remove.

5. Fry in the oil pan, as shown below.

6, fry until golden, remove and complete.