Udon is a thick Japanese wheat noodle. Udon is usually served hot in a mild broth with toppings such as mochi, tempura or deep fried tofu. However, there are many ways to eat Udon and it is prepared in dozens of ways including cold dishes such as Zaru udon (cold udon with nori dipped in a light sauce and wasabi). Udon can be challenging to eat because they tend to splash as you eat them. In Japan it is polite to loudly slurp soup noodles so don’t be shy to make a little noise.