This video, titled "From Scratch With the Sauce [Tsuyama Horumon Udon] B-Grade Gourmet in Okayama Prefecture" (タレからつくる【津山ホルモンうどん】岡山県のB級グルメ), was released by "Nomotaro Shokudo" (ノモタロウ食堂).

This video introduces how to make "Tsuyama Horumon Udon" which is eaten in the Tsuyama region of Okayama Prefecture.
It's all about preparing the horumon, cutting the vegetables, and making the sauce by hand.
All you have to do to finish it off is to cook the horumon, then fry the vegetables and udon noodles together and add the yakiniku sauce.
This udon is absolutely delicious.
If you're in a restaurant, you can make it on a griddle, but you can also make it in a frying pan, so give it a try!