Wakame Salad (Japanese Seaweed Salad with Cucumber)
AppetizerPublished May 31, 2026

Wakame Salad (Japanese Seaweed Salad with Cucumber)

This refreshing Japanese wakame salad combines tender seaweed and crisp cucumber in a savory sesame dressing, ready in just 15 minutes and perfect as a healthy appetizer or side dish.

Total Time15 mins
Yield4 servings
Tina
By Tina

The Japanese Seaweed Salad You Will Actually Crave

If you have ever sat down at a Japanese restaurant, spotted that small bowl of glistening green seaweed salad, and thought I need to learn how to make this at home, you are in exactly the right place. This wakame salad is bright, savory, a little tangy, and deeply satisfying in the way only simple food done right can be. It comes together in about 15 minutes, costs almost nothing, and tastes like something that took real skill.

Whether you are building a full Japanese meal with seaweed salad on the side, hunting for healthy Japanese seaweed salad ideas, or just craving something refreshing and light, this is your recipe.


What Is Wakame Salad?

Wakame is a type of edible seaweed that has been a staple of Japanese and Korean cooking for centuries. When dried and rehydrated, it softens into silky, tender ribbons with a mild ocean flavor that is never fishy or overpowering. In this salad, it pairs beautifully with thin slices of English cucumber for a classic seaweed and cucumber sunomono-style dish.

Sunomono literally means "vinegared things" in Japanese, and this salad falls right into that tradition. The dressing is built on rice vinegar, soy sauce, and toasted sesame oil, balanced with a touch of sugar and ginger.

Chef's Tip: Do not skip salting the cucumber. That five-minute rest with kosher salt draws out excess water so your salad stays crisp and the dressing clings properly instead of pooling at the bottom of the bowl.


Why This Recipe Works

The magic here is in the balance. The dressing hits every note: acidic from the rice vinegar, salty and umami-rich from the soy sauce, nutty and aromatic from sesame oil, and gently sweet from just a pinch of sugar. The ginger and garlic tie it all together without overpowering the delicate flavor of the wakame.

Here is what makes this version especially good:

  • Rehydrating in cold water keeps the wakame tender without turning it mushy
  • Salting the cucumber first prevents a watery, diluted dressing
  • Toasted sesame oil adds enormous depth compared to untoasted varieties
  • A pinch of red pepper flakes turns this into a spicy cucumber and seaweed salad with almost no extra effort

This recipe also happens to be naturally vegan and gluten-free (with tamari instead of soy sauce), making it one of the most versatile healthy Japanese seaweed salad options out there.


Using good-quality dried wakame and genuine toasted sesame oil makes a real difference in a recipe this simple. These are the few ingredients and tools worth choosing well.


How To Make Vegan Seaweed Salad: Step by Step

The process could not be more straightforward. While the wakame rehydrates in cold water, you salt the cucumber, whisk the dressing, and by the time those two things are done, you are ready to toss everything together.

A mandoline slicer is genuinely helpful for getting paper-thin, even cucumber slices, but a sharp chef's knife works perfectly well too. The thinner the slices, the more elegantly the salad comes together and the better it mirrors the version you would find served alongside Korean seaweed salad with chopsticks at your favorite restaurant.

The dressing can also be made up to three days ahead and kept in the fridge, which makes weeknight assembly even faster.

Ready to bring it all together? Here is the full recipe:

Wakame Salad (Japanese Seaweed Salad with Cucumber)

Wakame Salad (Japanese Seaweed Salad with Cucumber)

This refreshing Japanese wakame salad combines tender seaweed and crisp cucumber in a savory sesame dressing, ready in just 15 minutes and perfect as a healthy appetizer or side dish.

Prep:15 mins
Total:15 mins
Yield:4 servings
Cuisine:Japanese
Yield: 4 servingsCalories: 85Protein: 2g
Carbs: 9gFat: 5gSat. Fat: 0.7gFiber: 2gSugar: 4gSodium: 580mg

Ingredients

Units
Scale
  • 1/2 oz dried wakame seaweed, rehydrated in cold water for 10 minutes
  • 1 English cucumber, thinly sliced into half-moons
  • 3 tbsp rice vinegar, unseasoned preferred
  • 2 tbsp soy sauce, low-sodium works well
  • 1 tbsp sesame oil, toasted for best flavor
  • 1 tsp granulated sugar
  • 1 tsp fresh ginger, finely grated
  • 1 clove garlic, minced
  • 1/4 tsp red pepper flakes, optional for a spicy cucumber and seaweed salad kick
  • 1 tbsp toasted sesame seeds, for garnish
  • 2 green onions, thinly sliced
  • 1/2 tsp kosher salt, for salting cucumber

Instruction

1

Place the dried wakame in a bowl of cold water and let it rehydrate for 10 minutes. It will expand significantly. Drain, squeeze out excess water, and roughly chop any very long pieces.

2

While the wakame soaks, slice the cucumber into thin half-moons. Toss with the kosher salt in a colander and let sit for 5 minutes to draw out excess moisture. Rinse lightly and pat dry with paper towels.

3

In a small bowl, whisk together the rice vinegar, soy sauce, toasted sesame oil, sugar, grated ginger, minced garlic, and red pepper flakes if using. Taste and adjust seasoning as needed.

4

In a large mixing bowl, combine the drained wakame and the salted cucumber. Pour the sesame dressing over the top and toss gently until everything is evenly coated.

5

Garnish with toasted sesame seeds and sliced green onions. Serve immediately or refrigerate for up to 30 minutes before serving to let the flavors meld.

Equipment

  • Large mixing bowl
  • Small mixing bowl
  • Whisk
  • Colander
  • Mandoline or sharp chef's knife
  • Fine grater or microplane

Notes

Wakame salad is best enjoyed the same day it is made. If prepping ahead, keep the dressing and vegetables separate and toss just before serving. For a vegan version, swap the soy sauce for tamari. Leftover dressed salad can be stored in an airtight container in the fridge for up to 1 day, though the cucumber will soften slightly.

Serving Ideas and Variations

This wakame salad is incredibly flexible. Here are a few ways to serve and riff on it:

  • As a starter: Serve small portions in little bowls as part of a Japanese meal with seaweed salad alongside miso soup and edamame
  • As a side dish: Pair with teriyaki salmon, grilled chicken thighs, or a simple rice bowl
  • Spicy version: Add half a teaspoon of gochugaru or a drizzle of chili crisp for a proper spicy cucumber and seaweed salad
  • Avocado addition: Fold in diced ripe avocado just before serving for a creamier, more filling salad
  • How to make cucumber seaweed salad more substantial: Toss in cooked soba noodles and double the dressing for a light noodle salad

However you serve it, this salad brings something genuinely special to the table with very little effort. Once you have a bag of dried wakame in your pantry, you will find yourself making this on repeat.

Frequently Asked Questions

Dried wakame is widely available at Asian grocery stores, most well-stocked natural food stores, and online. Look for it in the dried goods or international foods aisle. A small bag goes a long way since the seaweed expands 4 to 5 times its dry size once rehydrated.
Yes, with a small trick. Keep the rehydrated wakame, salted cucumber, and dressing stored separately in the refrigerator, then toss everything together right before serving. This keeps the cucumber crisp and prevents the salad from becoming watery.
Once dressed, wakame salad is best eaten within the same day. If you have leftovers, store them in an airtight container in the refrigerator for up to 24 hours. The seaweed and cucumber will soften further but the flavor stays delicious.
Simply increase the red pepper flakes to half a teaspoon or add a teaspoon of gochugaru (Korean chili flakes) to the dressing. You can also drizzle a small amount of chili oil over the top just before serving for an extra punch of heat.

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