is tteokbokki halal?

snak

Its Halal, as long as it doesnt contain alcohol, and have MUI stamp on it

You meant everywhere including the street food? You'd better be careful unless you are sure that the ingredients are safe. Commercial ones are easy to check for example if it has halal logo, or not contain any meat. In case of street food tteokpokki, we don't know whether the seller adds any food additives derived from meat.