I made do-gan-neeh (basically same process as gom gook using different parts of the cow – in this case, cow knee bones) tang yesterday and added some beef eye of round into it as well.  I took a big piece of beef eye of round and added it to the boiling broth.  When it was just under two hours, I removed the beef and let it cool down.  Once cooled, I took a large, sharp knife and sliced the beef