Cool, Slurpy, and So Refreshing
When the weather turns warm, nothing hits the spot quite like vegan somen - thin, silky noodles served ice-cold with a savory, umami-rich dipping sauce and fresh toppings. It's light, bright, and perfect for lazy lunches or as part of a summery Japanese-style spread. Even better? It comes together in under 30 minutes.
This Recipe Pairs Beautifully With...
Make it a meal by serving your vegan somen alongside a crispy plate of vegan tempura - golden-fried veggies with a satisfying crunch. The hot-and-cold combo is pure joy.
What Are Somen Noodles?
Somen noodles are very thin Japanese noodles made from wheat flour - delicate, smooth, and typically about 1 mm in diameter. They're usually sold in neat, paper-tied bundles and cook in just a couple of minutes.
What makes vegan somen so special is how they're served: chilled, often in an ice bath, with a savory dipping sauce on the side and fresh toppings to mix and match. This cold noodle style is especially popular during Japan's hot summer months.
While they're similar in appearance to other Japanese noodles like soba or udon, somen have a unique softness and silkiness that's perfect for dipping - light, refreshing, and ideal for hot weather.
Most store-bought somen are naturally vegan, made from wheat flour, water, and salt. Just double-check the label to make sure there are no additives or egg-based ingredients.
How to Serve and Eat Somen
Somen is all about simplicity, freshness, sharing and fighting your friends and family for the last slurp. It's traditionally served cold, making it the ultimate refreshing dish for hot days - light, hydrating, and moreish.
1. Set the Table
Place your chilled somen noodles on a draining board - a bamboo sushi mat, a colander on a plate, or any surface that lets excess water drip away. This keeps the noodles from turning soggy.
Each person should have a small bowl of dipping sauce (about 80 ml), chopsticks, and access to all the toppings. For larger groups and to avoid any arguments - feel free to double up on serving platters so everyone has noodles and toppings within easy reach.
2. Add Your Toppings to the Sauce First
Before diving in, add your toppings directly to your dipping sauce - this infuses the broth with flavor and makes every bite delicious.
I highly recommend a little grated ginger, some radish/daikon, and a sprinkling of spring onion to start.
3. Dip, Don't Soak
Grab a small bundle of noodles (just enough for a mouthful), dip it into your sauce briefly - no need to soak - and slurp it up.
Slurping is not only acceptable, it's encouraged! The louder the slurp, the more you are enjoying your noodles.
4. Top Up as Needed
As you go, your dipping sauce may get diluted by the moisture from the noodles. Just top it off with a little more sauce from your reserve and keep going.
Is Slurping Really Better?
It may feel psychological, but there's actually something to it - slurping somen really does enhance the taste. When you slurp, you're not only aerating the noodles (like how you swirl wine), but you're also drawing in aroma along with flavor, which gives you a fuller sensory experience.
Plus, in Japan, slurping is totally acceptable - even encouraged! It's a sign you're enjoying the food, and it helps cool down the noodles ever so slightly as you eat.
So go on - slurp with confidence. Your taste buds will thank you.
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Ingredients
See recipe card for quantities.
Serves 2 | Prep time 20 mins | Cooking time 10 mins
For the dipping sauce:
- Vegan Dashi
- Sugar
- Soy sauce
- Sake
- Mirin
For the noodles:
- Somen noodles
- Ice
Toppings (optional, but so tasty):
- Spring onions, thinly sliced
- Cherry tomatoes, quartered or into eighths
- Cucumber, deseeded and julienned
- Ginger, peeled and grated
- Red radishes or Daikon (if you have a supplier nearby), peeled and grated
Bonus toppings (if you fancy):
- Crispy tofu strips
- Sushi mushrooms
- Braised 'age' (fried tofu pockets)
Instructions
Start with making your dipping sauce:
- In a small saucepan, combine dashi, soy sauce, sugar, sake, and mirin.
- Bring the sauce to a light simmer, stirring until the sugar dissolves.
- Chill the sauce in the fridge for 2-3 hours, or speed it up in an ice water bath for 15-20 minutes.
Boil water for noodles and prep toppings:
- Fill a large pot with 3 liters of water and bring it to a boil - it should be ready by the time you finish prepping your toppings.
- Peel and grate the ginger. Use a spoon to peel the skin, then grate it finely.
- Peel your red radishes or daikon and grate them - light and fluffy.
- Thinly slice the spring onions into rounds.
- Cut your tomatoes into quarters or eighths, depending on size.
- For the cucumber, scoop out the seeds with a spoon, then julienne.
- Place everything neatly on a plate or in small bowls, ready for serving.
Unbunch and cook the noodles:
- Now that the water's boiling, gently separate your somen noodles - this helps them cook evenly and prevents clumping.
- Add the somen to the boiling water and cook according to the package instructions - usually around 3 minutes.
- Drain and rinse under cold running water until completely cool and silky.
- Transfer the noodles to a bowl of ice water to chill and firm up.
- Lay out your dipping bowls (about 80 ml per person), chopsticks, and something to serve the noodles on - a bamboo sushi mat or colander on a plate works perfectly.
- Lift the noodles out of the ice bath and place them on your draining surface.
- Take a small portion of noodles, dip into the chilled sauce, add toppings, and enjoy. Top up the sauce as needed if it gets too diluted.
Hint: Use an ice water bath for both speed and texture.
After cooking, plunging the noodles into ice water doesn't just cool them quickly - it tightens their texture, making them smooth and satisfyingly chewy. Keep a bowl of ice water ready before the noodles finish cooking so you can transfer them straight in without delay.
Substitutions
Don't worry if you don't have everything on hand - vegan somen is super adaptable. Here are some easy swaps to help you make it work with what you've got:
- No sake?
You can leave it out entirely, or swap in a splash of rice vinegar for brightness. White wine works in a pinch, too - just a tiny bit. - No mirin?
Use a mix of sugar and a little rice vinegar (½ teaspoon each) to mimic that sweet tang. - Gluten-free?
Make it a gluten-free vegan somen by using tamari instead of soy sauce, and subbing in glass noodles or thin rice vermicelli. - Missing toppings?
Raid your fridge! Shredded lettuce, blanched spinach, shelled edamame or runner beans work great. The only must haves are ginger, radish and spring onions.
Variations
Want to put your own spin on vegan somen? Here are some fun and flavorful ways to change things up:
- Sesame crunch
Sprinkle toasted sesame seeds over your toppings or into the dipping sauce for a simple, nutty crunch that pairs beautifully with chilled noodles. - Cold noodle bento box
Pack your chilled somen, sauce, and toppings separately in a lunchbox for a refreshing on-the-go meal. Perfect for warm workdays or summer picnics. - Somen salad
Toss the chilled noodles with soy sauce, rice vinegar, and your toppings for a light and easy noodle salad - great for meal prep or a packed lunch. - Hearty & protein-packed
Top your noodles with pan fried or teriyaki tofu to turn your vegan somen into a more filling meal. - Kid-friendly twist
Let kids build their own bowls with toppings they love - like sweetcorn, shredded carrot, avocado, or mini tofu cubes. Keep the sauce mild (skip the sake if you like), and swap chopsticks for a small spoon and fork to make it more accessible.
Equipment
You won't need anything fancy for this dish, but a few key tools will make it a breeze:
- Draining board or bamboo sushi mat - for serving the noodles beautifully (a colander on a plate also works)
- Medium saucepan - for simmering the dipping sauce
- Large pot - to cook the somen noodles evenly
- Fine mesh strainer or colander - to rinse and drain the noodles
- Mixing bowl - for the ice water bath (use a big one!)
- Grater - for ginger and radish
- Sharp knife & chopping board - to prep all your toppings
- Serving bowls - small ones for the dipping sauce (around 80 ml per person)
- Chopsticks - or forks, if preferred
Storage
Somen noodles are best eaten fresh, especially when served cold - that signature smooth, bouncy texture starts to fade if they sit too long. But if you do have leftovers, here's how to store things properly:
Prepped toppings: Most toppings can be stored in small airtight containers in the fridge for 1-2 days. Ginger and radish are best grated fresh if possible, but you can prep them a few hours ahead and chill.
Cooked somen: Rinse well, then store in cold water in a sealed container in the fridge. Best used within 24 hours. Before serving, refresh the noodles in ice water to bring back their bite.
Dipping sauce: Keeps well in the fridge for up to 5 days. Store it in a clean jar or bottle with a lid. Give it a quick stir before serving.
Top Tips
- Double the sauce - It keeps well and comes in handy as a salad dressing or dip later in the week - you'll thank yourself!
- Keep everything cold - This dish is all about refreshment. Chill your serving bowls, toppings, and even chopsticks if you like - it all adds to the experience.
- Use lots of ice - Don't skimp on the ice bath! It firms up the noodles and gives them that satisfying chew and bounce.
- Separate your noodles before boiling - Gently unbundle the somen before cooking - it helps prevent clumping and ensures an even cook.
- Make it a DIY noodle bar - Set out your toppings in little bowls and let everyone build their perfect dipping combo. It's fun, hands-on, and perfect for casual hosting.
FAQ
Yes - with a little planning! The dipping sauce can be made 1-2 days in advance and stored in the fridge. You can also cook the somen noodles ahead of time, rinse them well, and store them in cold water in the fridge for up to 24 hours. Just refresh them in ice water before serving.
Somen noodles are naturally vegan, made with just wheat flour, salt, and water - but it's always smart to check the ingredients, as there may be some brands that include egg or additives.
Not recommended. Cooked somen noodles don't freeze well - their delicate texture tends to become mushy and unpleasant once thawed. If you have leftovers, it's best to store them in cold water in the fridge and eat within 24 hours. For longer storage, keep uncooked somen noodles in a cool, dry place - they have a great shelf life!
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Pairing
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📖 Recipe
Vegan Somen
Equipment
- Medium saucepan for simmering the dipping sauce
- Large pot to cook the somen noodles evenly
- Fine mesh strainer or colander to rinse and drain the noodles
- Mixing bowl for the ice water bath (use a big one!)
- Grater for ginger and radish
- Sharp knife and chopping board to prep all your toppings
- Serving bowls small ones for the dipping sauce (around 80 ml per person)
- Chopsticks or forks, if preferred
- Draining board or bamboo sushi mat for serving the noodles beautifully (a colander on a plate also works)
Ingredients
For the dipping sauce
- 250 ml dashi For speed I used instant dashi: 250 ml water + 1 teaspoon kombu dashi powder
- 1 teaspoon sugar
- 60 ml soy sauce light (kikoman is fine)
- 15 ml sake
- 20 ml mirin
For the noodles
- 4 bundles of somen noodles
- 3 liters water for boiling
- 4 cups ice
Toppings (optional but recommended)
- 2 spring onions thinly sliced
- 4 cherry tomatoes quartered or cut into eighths
- 5 cm piece of cucumber deseeded and julienned
- 5 cm piece of ginger peeled and grated
- 5 -6 red radishes or a 6 cm piece of daikon peeled and grated
Optional add-ons
- Crispy tofu strips
- Sushi mushrooms
- Braised 'age' fried tofu pockets
Instructions
- In a small saucepan, combine the dashi, soy sauce, sugar, sake, and mirin.
- Place the pan over medium heat and bring the mixture to a light simmer, stirring until the sugar is fully dissolved.
- Remove the sauce from the heat and chill it in the fridge for 2-3 hours, or speed things up by placing the pan in an ice water bath for 15-20 minutes.
- Fill a large pot with 3 liters of water and bring it to a boil while you prepare the toppings.
- Peel the ginger using the edge of a spoon, then grate it finely.
- Peel the radishes (or daikon, if using) and grate them into a small bowl.
- Slice the spring onions thinly into rounds.
- Quarter or slice the cherry tomatoes into eighths, depending on size.
- Halve the cucumber lengthwise, scoop out the seeds with a spoon, and slice into thin matchsticks.
- Arrange all of the toppings neatly on a plate or in small bowls, ready for serving.
- Gently separate the somen noodle bundles with your hands so they don't clump when cooking.
- Add the noodles to the boiling water and cook according to the package instructions, usually around 3 minutes.
- Drain the cooked noodles and rinse thoroughly under cold running water until completely cool and smooth.
- Transfer the noodles to a bowl of ice water and let them chill for a few minutes to firm up their texture.
- Prepare your table by setting out small dipping bowls (around 80 ml per person), chopsticks or forks, and a draining surface such as a bamboo mat or colander on a plate.
- Remove the noodles from the ice bath and place them on your draining surface to serve.
- To eat, take a small portion of noodles, dip briefly into the chilled sauce, add your preferred toppings, and slurp away. Refill your dipping sauce if it becomes too diluted.
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