Wash the yellow croaker and use a meat grinder to churn the yellow croaker into meat fish puree. Then put the yellow croaker's fish puree in a bowl. Add a little cornstarch and an egg. Add a little flour. Stir it well, just enough to be able to form chunks later. As long as you have hands to knead into fish meatballs. Then just boil the fish meatball soup. This will be very delicious.