Soondae

Sundae is a type of blood sausage in Korean cuisine. It is a popular street food in both North and South Korea, generally made by steaming cow or pig's intestines stuffed with various ingredients. The sundae sausage dates back to the Goryeo period (918–1392), when wild boars, prominent across the Korean Peninsula, were used in the dish. Recipes for sundae are found in nineteenth century cookbooks including Gyuhap chongseo and Siuijeonseo.

Source: Wikipedia