Freeze the Miyazakigyu Wagyu beef strip steak for 30 minutes before cutting. This makes it easier to slice into thin slices. Start in the center of the Miyazakigyu Wagyu beef strip steak and cut very thin slices, using long strokes of the knife to the end of the steak and repeat from each side until the steak is all thinly sliced. Arrange on a plate and refrigerate until everything else is prepared

Cut up all of the vegetables and arrange on a large platter.Cook the Udon noodles, per package instructions and toss lightly in oil.Heat the water up with the Kombu until boiling and let sit for 15 minutes, then discard the kombu. Stir in 3 teaspoons Kosher salt

When ready each person will add vegetables to the broth and let cook for 5 minutes and then swish the meat around until it is cooked through (15 seconds). Transfer the veggies, cooked Miyazakigyu wagyu steak and about 2-3 cups of broth to a bowl and take out the meat and dip in the Ponzu sauce. Skim off any skum that has accumulated before the next guest starts theirs. When all guests have made their bowls add the udon noodles to the remaining broth and season to taste with Ponzu sauce