Classic Udon Noodle Soup Made Easy at Home

This Classic Udon Noodle Soup is the ultimate Japanese comfort food—simple, savory, and soul-warming. With thick chewy noodles, a light umami-rich broth, and your favorite toppings, it’s easier than you think to recreate this restaurant favorite at home. Ready in under 30 minutes, it’s a cozy, satisfying meal any night of the week.

Ingredients List

7 oz (200g) fresh or frozen udon noodles
1 tablespoon sesame oil or neutral oil
1 small onion, thinly sliced
2 cloves garlic, minced
1 teaspoon grated ginger
4 cups dashi broth (or low-sodium chicken/veggie broth with 1 tsp soy sauce + 1 tsp mirin)
2 tablespoons soy sauce
1 tablespoon mirin
1 teaspoon sugar
½ teaspoon rice vinegar (optional)
Salt to taste

Topping ideas (choose your favorites):
Sliced green onions
Soft-boiled egg
Sautéed mushrooms
Nori strips
Tofu cubes or fish cakes
Chili oil or sesame seeds

Step-by-Step Instructions

Cook udon noodles according to package instructions. Drain and rinse under cold water to stop cooking. Set aside.
In a large pot, heat sesame oil over medium heat. Add sliced onion and sauté for 2–3 minutes until softened.
Stir in garlic and ginger. Cook for 1 minute until fragrant.
Pour in dashi broth (or your substitute). Add soy sauce, mirin, sugar, and vinegar (if using).
Bring to a gentle simmer and cook for 5–7 minutes to let the flavors blend.
Taste and adjust salt or seasoning if needed.
Divide cooked noodles into bowls. Ladle hot broth over noodles.
Top with your favorite garnishes and serve immediately.

Cooking Time

Prep Time: 10 minutes
Cook Time: 15 minutes
Total Time: 25 minutes

Servings

Makes 2 large or 3 smaller servings

Nutritional Information (approx. per serving)

Calories: 320
Carbs: 45g
Protein: 8g
Fat: 10g

Storage Instructions

Best served fresh, but broth and noodles can be stored separately in the fridge for up to 3 days
Reheat broth gently; reheat noodles by dipping briefly in hot water
Not ideal for freezing

Pairings/Suggestions

Serve with tempura shrimp, seaweed salad, or edamame for a full Japanese meal
Add tofu, egg, or bok choy for a protein boost
Top with chili oil for a spicy kick

Seasonal Relevance

Perfect for cold weather, rainy days, or when you’re craving something cozy and quick
Great for weeknight dinners or at-home takeout nights

Conclusion

Classic Udon Noodle Soup is a comforting, flavorful dish that’s surprisingly easy to make at home. With simple ingredients and endless topping options, it’s a warm, satisfying bowl you’ll return to again and again.

FAQs

Q1: Can I use dried udon noodles?
Yes, just cook according to the package—fresh or frozen has the best texture, though.

Q2: What’s the best broth substitute if I don’t have dashi?
Low-sodium chicken or veggie broth with a splash of soy sauce and mirin works great.

Q3: Can I make it vegetarian or vegan?
Yes—use veggie broth and top with tofu, mushrooms, and greens.