Wakame Salad (Japanese Cucumber Seaweed Salad)
This refreshing Japanese wakame salad combines silky rehydrated seaweed and crisp cucumber in a tangy sesame-soy dressing, ready in just 15 minutes and perfect as a healthy vegan appetizer.
The Japanese Seaweed Salad You Will Want to Make Every Week
If you have ever ordered Japanese food and found yourself fighting over the last bite of that glossy, sesame-scented seaweed salad from the appetizer spread, this recipe is for you. Wakame salad is one of those beautifully simple dishes that tastes like it took far more effort than it actually did. It is refreshing, light, deeply savory, and comes together in about 15 minutes with no cooking required whatsoever.
This is a healthy Japanese seaweed salad that doubles effortlessly as a vegan appetizer, a side dish alongside a Japanese meal with seaweed salad as the star, or even a bright, palate-cleansing addition to a larger spread. The key players here are tender rehydrated wakame and crisp cucumber, pulled together by a punchy sesame-soy dressing with a touch of ginger and garlic.
What Is Wakame, Exactly?
Wakame is a type of edible seaweed used widely across Japanese and Korean cuisine. You have likely eaten it in miso soup without even realizing it. Sold dried, it rehydrates in cold water in under 10 minutes, blooming into tender, silky ribbons with a mild, subtly briny flavor that pairs beautifully with bold dressings.
Because it is so nutrient-dense and low in calories, wakame is a staple in healthy Japanese cooking. It is rich in iodine, calcium, and antioxidants, making this cucumber seaweed salad as good for you as it is delicious.
Chef's Tip: Buy your dried wakame from an Asian grocery store or a reputable online retailer. The quality varies a lot between brands, and a fresh, vibrant green dried wakame will give you a far better salad than a dull, brownish one.
The Cucumber Makes All the Difference
For a proper cucumber and seaweed sunomono salad, Japanese cucumbers or Persian cucumbers are your best friends. They have thinner skin, fewer seeds, and a crispness that holds up beautifully after salting. English cucumbers work in a pinch, but avoid thick-skinned American slicing cucumbers here since they tend to turn watery and bland.
Salting the cucumber slices before tossing them into the salad is a small but important step. It draws out excess moisture so your dressing stays concentrated and the cucumbers stay satisfyingly crisp rather than soggy.
Using the right tools makes quick work of this recipe. A sharp mandoline slicer gives you perfectly even, paper-thin cucumber rounds in seconds, and a good microplane makes grating fresh ginger and garlic almost effortless.
Building the Dressing
The dressing for this spicy cucumber and seaweed salad is a classic Japanese sunomono-style vinaigrette with a savory twist. The backbone is soy sauce and rice vinegar, balanced with just a touch of sugar and deepened with toasted sesame oil, fresh ginger, and garlic.
A few tips for getting the dressing just right:
- Use unseasoned rice vinegar so you can control the salt and sweetness yourself.
- Toasted sesame oil is non-negotiable here. Regular sesame oil does not have the same nutty depth.
- Taste and adjust at the end. A little more vinegar brightens the whole thing up if it feels flat.
- For a spicy cucumber and seaweed salad, a pinch of togarashi or dried chili flakes added to the dressing adds a lovely gentle heat.
Chef's Tip: Make a double batch of the dressing and store it in a jar in the fridge. It keeps beautifully for up to a week and is incredible on grain bowls, soba noodles, or grilled tofu.
Ready to bring it all together? Here is the full recipe:
Wakame Salad (Japanese Cucumber Seaweed Salad)
This refreshing Japanese wakame salad combines silky rehydrated seaweed and crisp cucumber in a tangy sesame-soy dressing, ready in just 15 minutes and perfect as a healthy vegan appetizer.
Ingredients
- 1/2 oz dried wakame seaweed, dry weight, rehydrates to about 1 cup
- 2 Japanese or Persian cucumber, thinly sliced into rounds
- 1/2 tsp kosher salt, for drawing moisture out of the cucumber
- 2 tbsp soy sauce, low-sodium preferred; use tamari for gluten-free
- 2 tbsp rice vinegar, unseasoned
- 1 tsp toasted sesame oil, use a good-quality brand for best flavor
- 1 tsp granulated sugar, or substitute with maple syrup to keep it vegan
- 1 tsp fresh ginger, finely grated
- 1 garlic clove, finely grated or minced
- 1 tbsp toasted sesame seeds, white or mixed; for garnish
- 2 green onions, thinly sliced; for garnish
- 1/4 tsp chili flakes or togarashi, optional, for a spicy cucumber and seaweed salad variation
Instruction
Soak the dried wakame in a large bowl of cold water for 5 to 10 minutes until fully rehydrated and silky. Drain well, squeeze out any excess water with your hands, and roughly chop any very long pieces.
While the wakame soaks, place the sliced cucumbers in a colander and toss with the kosher salt. Let them sit for 5 minutes to draw out excess moisture, then pat completely dry with paper towels.
In a small bowl, whisk together the soy sauce, rice vinegar, sesame oil, sugar, grated ginger, and garlic until the sugar dissolves and the dressing is fully combined.
In a large mixing bowl, combine the drained wakame and the salted, dried cucumber slices.
Pour the dressing over the salad and toss gently until everything is evenly coated.
Taste and adjust seasoning. Add a splash more rice vinegar for brightness or a pinch more sugar for balance.
Transfer to a serving bowl or individual plates. Garnish generously with toasted sesame seeds, sliced green onions, and chili flakes or togarashi if you like a little heat.
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 slicer or sharp chef's knife
- Paper towels
- Fine grater or microplane
Notes
How to Serve Wakame Salad
This salad is incredibly versatile. Serve it as an appetizer in small bowls with chopsticks for a true Korean seaweed salad with chopsticks experience, or plate it alongside steamed rice and miso-glazed salmon for a complete Japanese meal with seaweed salad as the side.
It also pairs wonderfully with:
- Gyoza or dumplings as part of a Japanese-inspired starter spread
- Cold soba noodles for a light, refreshing lunch
- Teriyaki chicken or tofu for a balanced dinner plate
For a more substantial bowl, stir in some cooked and chilled soba noodles directly into the salad. It turns this simple how-to-make cucumber seaweed salad into a satisfying vegan main course without any extra work.
Light, bright, and endlessly refreshing, this is one recipe that earns a permanent spot in your weeknight rotation.
