Crispy Veggie Tempura Udon Soup

Authentic Vegetable Tempura Udon Soup: Crispy Tempura & Savory Broth

Vegetable Tempura Udon Soup is a traditional Japanese masterpiece, harmoniously blending the delicate crunch of lightly battered vegetable tempura with the comforting warmth of a smooth, umami-rich udon noodle soup. This dish is a true celebration of textures and flavors, offering a wonderfully light yet deeply satisfying meal perfect for any season. Once you’ve mastered the simple art of preparing homemade vegetable tempura, you’ll find yourself reaching for this recipe again and again!

Vegetable Tempura Udon Soup

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My Journey to Japanese Culinary Delights

Japan has always held a special place in my imagination—a magical land brimming with ancient traditions, breathtaking landscapes, and a vibrant culinary scene. For years, I dreamt of exploring its wonders, and when my partner finally made that dream a reality this year, I can genuinely say it was one of the happiest moments of my life.

Every aspect of the experience—the profound culture, the beautiful language, and especially the exquisite food—was just as miraculous as I had envisioned, if not more so. From bustling Tokyo markets to the serene temples of Kyoto, every corner offered a new sensory delight, particularly for my palate. It was an immersion into a world where food is not just sustenance, but an art form, a reflection of history, and a core part of daily life.

Vegetable Tempura Udon Soup

Vegetable Tempura Udon Soup

Discovering the Perfect Comfort Meal in Kyoto

Naturally, after such an inspiring trip, we returned home eager to infuse our daily cooking with as much Japanese influence as possible. While ramen was an obvious choice, one recipe that I was particularly keen to recreate was this incredible Vegetable Tempura Udon Soup.

The inspiration for this dish struck serendipitously in Kyoto. After days of exploring ancient streets and bustling markets, we found ourselves utterly famished. We stumbled upon a small, unassuming spot tucked away on a side street north of the main market area. The simple promise of udon noodle soup and tempura was exactly what we needed before catching our train to Osaka. It was my very first experience with this specific combination, and little did I know, it would become a cherished memory and a profound culinary inspiration.

And holy wow, we truly lucked out at that tiny, random spot! The moment I tasted the combination, I melted into my chair with happiness. It wasn’t just a meal; it was an experience—a harmonious blend of textures and flavors that provided immense comfort and satisfaction.

Vegetable Tempura Udon Soup

What made that lunch unforgettable? It was the perfect contrast: the delightfully crispy, lightly fried tempura vegetables, offering a delicate crunch with every bite. It was the wonderfully simple yet profoundly flavorful udon noodle soup, brimming with rich, umami depth. And, to top it all off, it was the first glass of crisp, chilled white wine I’d had in a week, a welcome change after days of sake and beer. All these elements converged to create a lunch that remains vividly etched in my memory.

Recreating the Magic: Mastering Homemade Tempura Udon

Bringing this dish home felt a bit daunting, primarily because achieving that elusive, perfect tempura batter seemed like an intimidating task. I worried about the right consistency, the ideal crispness, and ensuring the vegetables retained their fresh flavor. However, after diligent research into basic recipes and experimenting with various measurement variations, I finally landed on a batter recipe that was just right.

The result was a light, ethereal batter that crisped up beautifully, exactly as I remembered it from that charming little shop in Kyoto! This delicate coating is perfect for allowing the natural, fresh flavors of the vegetables to shine through, providing a delightful textural contrast to the soothing, savory udon noodle soup. The balance between the crunchy tempura and the soft, chewy noodles in the warm broth is truly a culinary delight.

Vegetable Tempura Udon Soup

Trust me when I say, this Vegetable Tempura Udon Soup is a fantastic recipe to have in your repertoire, especially when entertaining guests. It looks impressive, tastes incredible, and offers a unique dining experience that will surely delight. The effort is minimal compared to the incredible reward of a homemade Japanese feast.

Exploring Other Udon Favorites

If you’ve fallen in love with udon noodles, I highly recommend trying some other weeknight-friendly recipes. For a savory and satisfying option, try this curry udon made with tender chicken and sweet onions. Or, if you enjoy a kick of spice, dive into a vibrant kimchi udon, bursting with bold flavors.

Vegetable Tempura Udon Soup

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This Recipe’s Must-Haves for a Perfect Cook

To successfully prepare this delicious Vegetable Tempura Udon Soup, having the right tools can make all the difference. Here are some essential items that will help you achieve the best results:

  • Extra Long 14 Inch Stainless Steel Chopsticks: These chopsticks are an absolute game-changer when it comes to frying tempura vegetables. Their length allows you to safely and easily add vegetables to the hot oil and remove them without splashing or damaging the delicate fried batter. They offer precise control, ensuring perfectly coated and evenly cooked tempura every time.
  • To achieve the ideal frying temperature and depth, I always recommend using a reliable pot. This Lodge Enameled Cast Iron Dutch Oven is a fantastic and inexpensive option if you don’t already own one. Its heavy construction helps maintain consistent oil temperature, which is crucial for perfectly crispy tempura.
  • For simmering the rich udon soup base, a good saucepan is indispensable. The Le Creuset Signature Cast Iron Sauce Pan is excellent for bringing together the super easy, flavorful soup base for your udon noodles. Its even heat distribution ensures your dashi broth develops its full umami potential.
  • And speaking of udon noodles, selecting the right ones makes a huge difference. These Ka-Me Stir Fry Udon Noodles are my absolute favorite! Packaged in small, vacuum-sealed portions, these fresh noodles are incredibly convenient, ready to use at a moment’s notice, and stay fresh for an extended period. They are perfect to have on hand for last-minute dinners or for a quick, comforting lunch—just pack them with the soup broth in a separate container.

Pin this Vegetable Tempura Udon Soup recipe for later!

Don’t let this incredible recipe get lost in your bookmarks! Pin this image to your favorite Pinterest board so you can easily find and recreate this amazing Vegetable Tempura Udon Soup whenever a craving for authentic Japanese comfort food strikes. Share the deliciousness with your friends and family!

Vegetable Tempura Udon Soup

Vegetable Tempura Udon Soup

Vegetable Tempura Udon Soup

Crispy, lightly battered vegetables paired with smooth, umami-filled udon noodle soup is just the texture explosion you’ve always wanted in your life! Mastering the art of tempura has never been easier.
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes

5 from 48 votes
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ingredients

Tempura Vegetables

  • 1 bunch asparagus trimmed
  • 1 sweet potato peeled
  • 1 turnip scrubbed
  • 1 potato scrubbed
  • 3 carrots peeled
Tempura Batter

  • 1 egg
  • 5 1/2 oz flour
  • 7 oz ice cold water
  • 1/4 tsp fine sea salt
  • Canola oil
Udon Soup

  • 4 1/2 cups cold water
  • 2 palm-sized pieces kombu
  • 1 1/4 Tbsp bonito flakes
  • 1 1/2 Tbsp sake
  • 2 Tbsp mirin
  • 2 Tbsp soy sauce
  • 1/2 tsp salt
  • 7 oz fresh udon noodles
  • 4 spring onions

instructions

  • Start by making the soup. To do so, you will need to soak the kombu pieces in the cold water for the soup in a large pot overnight.
  • When ready to cook, bring the water to a boil. Scoop out the pieces of kombu just before the water begins to boil.
  • Once the water is boiling, sprinkle in the bonito flakes. Turn off the heat and allow flakes to steep in the liquid for 10 minutes. This creates your flavorful dashi broth.
  • Strain the stock through a fine mesh sieve, returning the strained liquid to the pot. Bring to a boil again over medium-high heat, and stir in sake, mirin, soy sauce and salt. Season to taste with additional soy sauce and mirin to achieve your desired umami balance. Once boiling, add the fresh udon noodles.
  • Cover and cook for 30 seconds to 1 minute until the udon noodles are perfectly cooked through and tender. Keep the soup warm over low heat while you prepare the tempura.
  • Prepare your vegetables for tempura. Using a mandoline set to 1/4-inch thickness, carefully slice the sweet potato, turnip, potato and carrots. Ensure consistent thickness for even frying. Trim the asparagus. Set all prepared vegetables aside.
  • Fill a sturdy pot (like a Dutch oven) approximately 2 inches deep with canola oil or other neutral frying oil. Heat the oil over medium heat to 360 degrees F (about 180 degrees C). It’s crucial to maintain this temperature throughout the frying process, so use a kitchen thermometer and adjust your heat up or down as required.
  • While the oil heats up, prepare your tempura batter. In a medium bowl, gently whisk together the egg, flour, ice cold water, and fine sea salt for one to two minutes, until just smooth but still slightly lumpy. Overmixing will result in tough tempura. To keep the batter optimally cool, place this bowl in a second, larger bowl filled with ice. Cold batter is essential for crispy tempura!
  • When the oil is at the correct temperature, use your stainless steel chopsticks to gently dip individual pieces of the various prepared vegetables into the cold batter, ensuring they are lightly coated. Carefully place them into the hot oil, working in small batches of approximately 5-7 pieces per pot to avoid overcrowding. Overcrowding will drop the oil temperature and result in soggy tempura. Fry the vegetables for about 3 minutes, flipping once if needed, until the pieces turn a beautiful light golden brown and are perfectly crispy.
  • Remove the fried tempura pieces from the oil and transfer them to a sheet pan generously lined with paper towels to drain any excess oil. Serve the crispy tempura vegetables immediately alongside bowls of the hot, comforting udon noodle soup. Garnish with chopped spring onions if desired.

notes

*The key with tempura is to serve it hot and freshly fried for maximum crispness and flavor! I like to serve the tempura as I cook up the batches, bringing fresh pieces to the table continuously. However, if you prefer a slightly more formal serving, you can fry half of the vegetables and serve those. Then, once the first half starts to dwindle, proceed with frying the remaining vegetables to ensure everything is enjoyed at its peak freshness and warmth. Enjoy this authentic Japanese comfort food!
Category: Main Dish

Tips for Achieving Perfect Homemade Tempura

Making delicious tempura at home is surprisingly accessible with a few key techniques. The secret lies in creating a light, crispy batter that enhances, rather than overwhelms, the fresh flavor of the vegetables. Always ensure your batter is ice-cold – this creates a thermal shock when it hits the hot oil, resulting in that signature airy, crisp texture. Avoid overmixing the batter; lumps are desirable as they prevent gluten development, which can lead to a chewy crust. Similarly, maintaining a consistent oil temperature, ideally around 360-375°F (180-190°C), is crucial. Too cool, and the tempura becomes greasy; too hot, and it burns before cooking through. Fry in small batches to keep the oil temperature steady and prevent overcrowding, which can steam the vegetables instead of frying them. Drain your tempura on a wire rack over paper towels immediately after frying to maintain crispness.

The Heart of the Soup: Crafting a Flavorful Dashi Broth

The soul of any authentic udon soup is its dashi broth, a simple yet incredibly flavorful stock that forms the foundation of Japanese cuisine. Our recipe uses two traditional ingredients: kombu (dried kelp) and katsuobushi (bonito flakes). Soaking kombu in cold water overnight gently extracts its umami richness. The kombu should be removed just before the water boils to prevent any bitterness. Adding bonito flakes to the hot water off the heat allows them to steep and release their distinct savory notes, creating a nuanced and deep flavor profile. Once strained, this homemade dashi is seasoned with sake, mirin, and soy sauce, transforming it into a comforting and aromatic broth that perfectly complements the chewy udon noodles and crispy tempura. This delicate balance of savory, slightly sweet, and umami notes is what makes udon soup so incredibly satisfying.

Enjoy Your Homemade Japanese Feast!

There’s immense satisfaction in recreating a beloved dish from your travels right in your own kitchen. This Vegetable Tempura Udon Soup is more than just a meal; it’s a culinary journey back to the enchanting streets of Japan, a testament to the simple yet profound flavors that define Japanese cuisine. The vibrant colors of the vegetables, the delightful crunch of the tempura, the comforting warmth of the umami-rich broth, and the satisfying chew of the udon noodles all come together to create a truly memorable dining experience. Whether you’re serving it for a special occasion or a cozy weeknight dinner, this recipe is sure to impress and nourish both body and soul. Don’t hesitate to embark on this delicious adventure and bring the taste of Japan into your home today!