Ingredients: 50g of black bean sauce, 450g of vegetable oil, 30ml of salt, monosodium glutamate 1 g, 8ml of chopped green onion, and ginger slices10g. Method: Wash the black bean sauce, pour the vegetable oil into the pot, and when the oil is 60% hot, add the black bean sauce, black bean sauce and various seasonings, add a proper amount of water and stew. Efficacy: benefiting qi and eliminating dampness, invigorating stomach and nourishing liver. Scope of application: For Guanwuxi and herring, the method of cooking herring by video black bean sauce Ingredients: black bean sauce 50g herring 450g vegetable oil 30ml salt, monosodium glutamate 1g sliced onion and ginger 10g soy sauce 8ml Practice: Wash the herring, pour the vegetable oil into the pot, and add herring when the oil is 60% hot.