Now wash Nostoc flagelliforme, put it in a container, add 10 eggs into Nostoc flagelliforme, and pour egg yolk into Nostoc flagelliforme; Jiang Mo monosodium glutamate, scallion and salt, stir well. Send away the egg white, that is, all the foam without liquid. Divide Nostoc flagelliforme into two parts (if you have a big enough pot, one part will do), put it in a pan and steam it in the pot for 15 minutes, then cover the beaten egg whites evenly on Nostoc flagelliforme and steam it for 7 minutes on medium heat. Eating is to use mutton soup as an auxiliary material.