Zaru udon is a cold Japanese noodle recipe that makes thick udon noodles refreshing, chewy, and perfect for hot days. The noodles are usually boiled until tender, rinsed under cold water, and chilled well so they keep a smooth texture with a firm bite. A simple dipping sauce, often made with dashi, soy sauce, mirin, and sometimes a little sugar, gives the noodles clean umami flavor without making the dish heavy. Toppings such as green onion, grated ginger, sesame seeds, wasabi, shredded nori, or tempura flakes can add aroma, freshness, and texture. The final zaru udon is light but satisfying, making it easy to serve for lunch or dinner with tempura, tofu, cucumber salad, pickles, or other Japanese side dishes when you want a cool meal with simple flavor.
