Put a little cooking oil in the pot. When the oil temperature rises to 60%, add crucian carp and fry until both sides are golden. Add hot water to boil, and then simmer for later use. Take another pot, cut the washed mutton into small pieces, add cold water to the pot, turn on a big fire until it boils, and use chopsticks after all the blood in the meat is "tight"; Although troublesome, it is relatively clean; Take out the mutton and put it aside. Put the clean wok on the stove, turn on the big fire, add cooking oil when the wok is hot, add onion, ginger, garlic, fragrant leaves, pepper and fennel into the hot oil, add mutton, cooking wine and salt, stir-fry for two minutes, add the previously cooked crucian carp soup and appropriate amount of hot water, and simmer for one hour after the fire boils. Before taking out the pot, wash and cut the coriander into pieces and put it into the pot. Crucian carp mutton soup is simple, delicious and mellow, which is delicious in winter. In this cold winter, cooking a bowl of crucian mutton soup can not only keep out the cold, but also benefit the body. It is a nutritious home-cooked dish suitable for all ages.