Pork intestines are filled with glass noodles and glutinous rice.
Sundae is also popular street food.
You can try it at Snack bar[‘Pojangmacha’] with tteokbokki on the street.
Sundae look like a sausage, but sundae is a little different. Sundae is basically steamed.
so some person does not eat sundae, they say some kind of smell.
Anyway I recommend try this one.
If you order Sundae, usually steamed pork lungs and steamed pork river come with Sundae.
Eating Sundae with Tteokbokki source is good.