How to cook sea cucumber with scallion? Stir-fry sea cucumber and ginger slices in fire garlic and onion, soy sauce, sugar, salt and peanut oil. Wash the soaked sea cucumber and cut it into thin strips of 1 cm. Boil the pot and drain the oil. Stir-fry the sea cucumber ginger slices in the fire garlic, onion slices and flower buds, add a little water, add appropriate amount of oyster sauce and soy sauce to taste, and collect the juice. Fried sea cucumber with big onion.