Extended data:
Porphyra and egg soup is a kind of instant soup, which is a traditional after-dinner soup in Sichuan. Its main ingredients, laver and eggs, have high nutritional value and are widely loved because of their simple preparation and rich nutrition. Porphyra is an edible group of thallus, and its content of protein, iron, phosphorus, calcium, riboflavin and carotene ranks first among all kinds of vegetables, so Porphyra has the reputation of "nutritional treasure house".
Reference materials:
Baidu encyclopedia-laver egg drop soup