An easy Japanese Clear Onion Soup recipe brings a comforting warmth and delightful flavor to any occasion. This light and clear soup is reminiscent of the delicious offerings at your favorite Hibachi Steakhouse. With just nine simple ingredients and a quick preparation time of 30 minutes, it’s perfect for busy weeknights or as a starter for special gatherings. The simplicity of this dish allows its fresh ingredients to shine, making it a wonderful choice for anyone looking to enjoy a taste of Japanese cuisine.
Why You’ll Love This Recipe
- Quick Preparation: This soup comes together in just 30 minutes, making it an excellent option for busy days.
- Light and Flavorful: The clear broth allows the fresh flavors of vegetables to shine through, creating a refreshing experience.
- Versatile Serving Options: Enjoy it as an appetizer or pair it with rice or noodles for a hearty meal.
- Healthy Ingredients: Packed with vegetables, this soup is low in calories while being high in nutrients.
- Customizable Heat: Adjust the spice level with optional soy sauce and sriracha to suit your taste preferences.
Tools and Preparation
To make this Japanese Clear Onion Soup, you’ll need some essential tools that help streamline the cooking process.
Essential Tools and Equipment
- Large pot
- Fine-mesh strainer or slotted spoon
- Cutting board
- Chef’s knife
Importance of Each Tool
- Large pot: This is essential for cooking the soup evenly and allowing all the flavors to meld together.
- Fine-mesh strainer or slotted spoon: This tool helps you separate the clear broth from the solid vegetables, ensuring a light soup texture.

Ingredients
For the Broth
- 6 cups vegetable broth
- 2 cups onions (diced)
- 1 cup celery (diced)
- 1 cup carrots (peeled and diced)
- 1 tbsp garlic (minced)
- ½ tsp fresh ginger (minced)
- 1 tsp sesame oil
For Serving
- 1 cup button mushrooms (thinly sliced)
- ½ cup scallions (sliced)
- soy sauce (optional)
- sriracha (optional)
How to Make Japanese Clear Onion Soup
Step 1: Sauté the Onions
Heat a little oil in a large pot over medium heat. Add the diced onions and cook for about 10 minutes, stirring occasionally, until they become soft and slightly caramelized.
Step 2: Add Vegetables and Broth
Stir in the carrots, celery, garlic, and ginger. Pour in the sesame oil and vegetable broth. Season with salt and pepper to taste.
Step 3: Simmer for Flavor Development
Bring the mixture to a boil, then reduce the heat to a simmer. Let it cook uncovered for 30 minutes to allow the flavors to develop.
Step 4: Strain the Broth
Use a fine-mesh strainer or slotted spoon to remove the vegetables, leaving behind a clear broth. Discard the solids or save them for another use.
Step 5: Prepare Serving Bowls
Place a handful of thinly sliced mushrooms and scallions into serving bowls.
Step 6: Serve Hot Broth
Pour the hot broth over the mushrooms and scallions, allowing them to soften slightly in the heat.
Step 7: Customize Your Bowl
Add a splash of soy sauce for extra depth or sriracha for a spicy kick according to your preference.
Enjoy this delightful Japanese Clear Onion Soup as part of your meal or on its own!
How to Serve Japanese Clear Onion Soup
Japanese Clear Onion Soup is a versatile dish that can be enjoyed in various ways. Whether you’re serving it as an appetizer or a light meal, these suggestions will enhance your dining experience.
As an Appetizer
- Serve in small bowls before the main course to stimulate the appetite.
- Garnish with fresh herbs like cilantro or parsley for added freshness.
With Rice
- Pair with a bowl of steamed rice for a heartier meal.
- The rice absorbs the flavorful broth and adds substance.
Add Protein
- Include cooked chicken or tofu for extra protein.
- This makes the soup more filling and satisfying.
Drizzle with Sauce
- Add a splash of soy sauce or sriracha for flavor enhancement.
- This adds depth and a spicy kick according to personal preferences.
Top with Crispy Onions
- Sprinkle crispy fried onions on top for texture.
- Adds crunch and complements the soft vegetables in the soup.
How to Perfect Japanese Clear Onion Soup
To ensure your Japanese Clear Onion Soup is both delicious and visually appealing, consider these tips:
- Use Fresh Ingredients: Fresh vegetables like onions, carrots, and celery will enhance the flavor of your soup significantly.
- Control the Heat: Cook over medium heat to caramelize onions without burning them, bringing out their natural sweetness.
- Strain Carefully: Use a fine-mesh strainer to achieve a clear broth, removing all solid bits for that authentic look and feel.
- Season Gradually: Taste and adjust seasoning as needed throughout cooking. This ensures balanced flavors.
- Serve Hot: Always serve your soup hot to enjoy its full flavor profile and comforting warmth.
Best Side Dishes for Japanese Clear Onion Soup
Pairing side dishes with Japanese Clear Onion Soup can create a well-rounded meal. Here are some excellent options:
- Japanese Fried Rice: A savory blend of rice, vegetables, and seasonings that complements the soup perfectly.
- Edamame Beans: Lightly salted edamame adds protein and a fun finger food element to your meal.
- Seaweed Salad: Refreshing and slightly tangy, this salad offers a contrast to the warm soup.
- Tempura Vegetables: Crispy tempura adds texture and makes for a delightful combination with the clear broth.
- Cucumber Salad: A light, crunchy cucumber salad provides a refreshing palate cleanser between bites of soup.
- Steamed Dumplings: These savory pockets can be filled with vegetables or meat, providing a satisfying bite alongside the soup.
Common Mistakes to Avoid
Making Japanese Clear Onion Soup can be simple, but there are a few common pitfalls to watch out for.
- Overcooking the onions: If you cook the onions too long, they can become too caramelized and change the flavor of your broth. Aim for a light golden color instead.
- Ignoring the broth quality: Using low-quality vegetable broth can diminish the soup’s overall taste. Choose a flavorful, well-seasoned broth for the best results.
- Not straining properly: Skipping the straining step may leave bits of vegetables in your soup. Use a fine-mesh strainer to ensure a clear broth.
- Using too much soy sauce: While soy sauce adds depth, overdoing it can make the soup too salty. Add it gradually and taste as you go.
- Forgetting to season: A little salt and pepper can enhance flavors significantly. Don’t forget to adjust seasoning before serving!

Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container.
- Consume within 3–4 days for optimal freshness.
Freezing Japanese Clear Onion Soup
- Freeze in freezer-safe containers or bags.
- Best used within 1–2 months for optimal flavor.
Reheating Japanese Clear Onion Soup
- Oven: Preheat to 350°F (175°C). Place soup in an oven-safe dish and cover; heat for about 20 minutes or until warm.
- Microwave: Heat in a microwave-safe bowl at medium power for 2-3 minutes, stirring halfway through.
- Stovetop: Pour into a pot and heat over medium-low heat, stirring occasionally until warmed through.
Frequently Asked Questions
Here are some common questions about making Japanese Clear Onion Soup.
What is Japanese Clear Onion Soup?
Japanese Clear Onion Soup is a light, flavorful broth made primarily with onions and vegetables. It’s often served as an appetizer in Japanese steakhouses.
Can I customize my Japanese Clear Onion Soup?
Yes! You can add different vegetables or proteins such as chicken or tofu for variety. Adjust ingredients based on your taste preferences.
Is Japanese Clear Onion Soup healthy?
Absolutely! With low calories and high vegetable content, it’s a nutritious option that fits well into many diets.
How do I make my broth taste better?
Consider adding herbs like thyme or bay leaves during cooking for extra flavor. A splash of vinegar can also enhance the taste.
Can I use other types of oil instead of sesame oil?
Yes! You can replace sesame oil with olive oil or any other neutral oil if you prefer different flavors.
Final Thoughts
Japanese Clear Onion Soup is not only delicious but also incredibly versatile. Whether enjoyed on its own or as part of a meal, it invites customization to suit your taste. Try it out, and experiment with your favorite ingredients!
Japanese Clear Onion Soup
Japanese Clear Onion Soup is a delightful, light broth that captures the essence of traditional Japanese cuisine. Perfectly aromatic and soothing, this soup is reminiscent of the beloved offerings at hibachi steakhouses.
- Total Time: 40 minutes
- Yield: Serves approximately 6
Ingredients
- 6 cups vegetable broth
- 2 cups onions (diced)
- 1 cup celery (diced)
- 1 cup carrots (peeled and diced)
- 1 tbsp garlic (minced)
- ½ tsp fresh ginger (minced)
- 1 tsp sesame oil
- 1 cup button mushrooms (thinly sliced)
- ½ cup scallions (sliced)
- soy sauce (optional)
- sriracha (optional)
Instructions
- Sauté onions in a large pot over medium heat until soft and lightly caramelized, about 10 minutes.
- Add celery, carrots, garlic, ginger, sesame oil, and vegetable broth. Season with salt and pepper.
- Bring to a boil; reduce heat and simmer uncovered for 30 minutes to develop flavors.
- Strain the mixture using a fine-mesh strainer to separate the clear broth from solids.
- Place mushrooms and scallions in serving bowls; pour hot broth over them.
- Customize with soy sauce or sriracha as desired.
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Category: Soup
- Method: Sautéing/Simmering
- Cuisine: Japanese
Nutrition
- Serving Size: 1 serving
- Calories: 80
- Sugar: 4g
- Sodium: 600mg
- Fat: 3g
- Saturated Fat: 0g
- Unsaturated Fat: 2g
- Trans Fat: 0g
- Carbohydrates: 12g
- Fiber: 2g
- Protein: 4g
- Cholesterol: 0mg