When the weather turns hot, few dishes are as refreshing and satisfying as Japanese-style cold ramen. Known as hiyashi chūka (冷やし中華), this popular summer dish combines chilled ramen noodles with colorful toppings and a tangy soy-based dressing. It's light, flavorful, and surprisingly easy to make at home.

What Is Japanese-Style Cold Ramen?

Unlike traditional hot ramen served in rich broth, Japanese cold ramen is served chilled and topped with fresh ingredients such as cucumber, ham, egg, tomatoes, and sometimes seafood. A cold, savory-sweet dressing ties everything together, creating a refreshing meal perfect for warm days.

Ingredients

For the Noodles

• 2 servings fresh ramen noodles

For the Toppings

• 1 cucumber, julienned
• 1 tomato, sliced into wedges
• 2 eggs
• 4 oz (115g) ham or cooked chicken breast, thinly sliced
• 1 sheet nori (seaweed), shredded
• 1 tablespoon sesame seeds
• Pickled ginger (optional)

For the Dressing

• 3 tablespoons soy sauce
• 2 tablespoons rice vinegar
• 1 tablespoon sesame oil
• 1 tablespoon sugar
• 1 tablespoon cold water
• 1 teaspoon Japanese mustard (optional)

Instructions

Step 1: Prepare the Egg Crepe

1. Beat the eggs in a small bowl.
2. Heat a lightly oiled non-stick skillet over medium heat.
3. Pour in the eggs and cook into a thin omelet.
4. Allow it to cool, then slice into thin strips.

Step 2: Cook and Chill the Noodles

1. Bring a pot of water to a boil.
2. Cook the ramen noodles according to the package instructions.
3. Drain and immediately rinse under cold running water.
4. Place the noodles in ice water for 1–2 minutes.
5. Drain thoroughly and set aside.

Step 3: Make the Dressing

1. In a small bowl, combine soy sauce, rice vinegar, sesame oil, sugar, water, and mustard.
2. Whisk until the sugar dissolves completely.
3. Chill the dressing in the refrigerator until ready to serve.

Step 4: Assemble the Dish

1. Divide the chilled noodles between serving plates or bowls.
2. Arrange the cucumber, tomato, egg strips, and ham neatly on top.
3. Sprinkle with shredded nori and sesame seeds.
4. Drizzle the cold dressing over everything just before serving.

Tips for the Best Cold Ramen

• Use ice water to quickly chill the noodles and maintain their chewy texture.
• Prepare toppings ahead of time for a quick and easy meal.
• Add shrimp, crab sticks, or sliced chicken for extra protein.
• Garnish with green onions or a soft-boiled egg for additional flavor.
• Serve immediately after assembling for the freshest taste.

Variations

Spicy Cold Ramen

Add chili oil or a spoonful of gochujang to the dressing for a spicy kick.

Seafood Cold Ramen

Top with chilled shrimp, imitation crab, or smoked salmon.

Vegetarian Version

Replace the ham with tofu, edamame, or additional vegetables such as carrots and bell peppers.

Japanese-style cold ramen is the perfect summer comfort food. With its combination of chilled noodles, crisp vegetables, and tangy dressing, it delivers refreshing flavors without requiring hours in the kitchen. Whether you're looking for a quick lunch or a light dinner, this easy homemade cold ramen recipe is sure to become a seasonal favorite.

Enjoy your homemade hiyashi chūka and bring a taste of Japanese summer to your table!