First, soak shiitake mushrooms in boiling water for 15 minutes and slice.
2. Step
Cook udon noodles in the pot with boiling water for 1-2 minutes until the noodles are loose. Drain them, then set them aside.
3. Step
In a frying pan on medium-heat, saute brown onion, shiitake mushrooms, carrot, and garlic until soft. Then, add cabbage and mushroom-soaking liquid and cook until cabbage is softened. Then, add light and dark soy sauce, oyster sauce, and ground white pepper and cook for 1-2 minutes.
4. Step
Return udon noodles back to the pan, stir and mix with the sauces until noodles are well-coated.
5. Step
Add black vinegar in, stir, and cook for a few minutes. Add salt to taste.
6. Step
Finish with sesame oil, then garnish with black and white sesame seeds, shredded Nori, and spring onion.
