Plot: Christopher Kimball visits Japanese cooking instructor Sonoko Sakai at her home to make udon noodles. The secret: Stomping on the dough to knead it! Back in the kitchen, we learn how to make Homemade Udon Noodles as well as two preparations: Udon Noodles in Soy Broth and Udon Noodles with Spicy Meat and Mushroom Sauce