This I buy but am out of it at the moment. I must remedy that.
S: 上海葱油; T: 上海蔥油 (shàng hǎI cōng yóu), scallion oil is very traditional in that city but also popular across China.
Used in a simple noodle dish available everywhere - a Chinese answer to the Italian pasta 'aglio e olio'? Also used in pancakes and as a dip.
Me likes.
Images from their advertising on Meituan food delivery app.