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You should be eating more seaweed.
You should be eating more seaweed. (Photo: Ocean Greens)

Kelp Is the Ocean’s Most Underutilized Power Ingredient

Seaweed farmers want Americans to eat the "kale of the sea" in more than just sushi, and there's good reason to take their advice

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You should be eating more seaweed.
(Photo: Ocean Greens)

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By now you鈥檝e probably heard the news: You should be eating more seaweed. (And if you hadn鈥檛 heard, well, now you know.)

Seaweed, or sea greens as many in the industry prefer to call it, is 鈥渉ands-down the most sustainable food on the planet,鈥 says Bren Smith, who farms kelp alongside shellfish at in Connecticut. (Seaweed is an umbrella term for many types of algae鈥攌elp is a larger, leafier type of seaweed.) 鈥淚t requires zero inputs, no fresh water, feed, or fertilizer.鈥 And you can grow a lot in a small space. Smith is pulling ten聽to 30 tons of kelp out of every acre he plants.听

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It鈥檚 also loaded with nutrients, which is why Smith鈥檚 farm has shirts that boast 鈥淜elp Is the New Kale.鈥 鈥淪ea greens have more iron than red meat and more calcium than milk. They鈥檙e also rich in minerals like sodium, potassium, and iodine,鈥 he says. In fact, seaweed can have so much iodine that you actually shouldn鈥檛 eat it in massive quantities. Lisette Kreischer, co-author of the聽forthcoming cookbook , recommends eating no more than five聽to eight聽grams of dried seaweed or 50 to 70 grams of fresh seaweed per day. Also, while seaweed is high in many minerals, it鈥檚 fat-free and extremely low in calories and carbs, so if you鈥檙e an athlete, you鈥檒l need to make sure you鈥檙e getting adequate macronutrients from the rest of your meal.听

Considering that the sheets of nori girding our sushi are about all the seaweed most Americans consume, Kreischer鈥檚 warning isn鈥檛 currently something to worry about. But she and Smith really want Westerners to start eating seaweed on a daily basis. The problem? Most of us have no idea how to do it. 聽

Sure, you could just open your mouth during your next triathlon and hope for a little on-course nourishment. But Smith, who swears he鈥檚 not a foodie, says even a culinary novice can make fresh and delicious seaweed dishes. Here鈥檚 everything you need to know about buying, cooking, and serving seaweed鈥攕orry, sea greens.听

Source It Right

Smith says 99 percent of all seaweed currently available in the United States聽comes from Asia. There鈥檚 little in the way of quality control or regulation for these products, which means it鈥檚 hard to know how your product was farmed and treated. If possible, try to find a North American鈥揼rown crop. Thimble Island sells seaweed noodles, but it鈥檚 having trouble keeping up with demand. Other good options are or .听

Start with Noodles

Kelp noodles are generally pure seaweed cut into thin strips. 鈥淭hey are mild tasting, so they鈥檙e very versatile, easy to prepare, and turn a beautiful bright-green color when cooked,鈥 says Smith. Plus, they鈥檙e usually gluten- and rice-free. Some don鈥檛 even require cooking; simply rinse with hot water, toss it聽in聽a sauce, and call it dinner.听

Make It Your Secret Ingredient

Kreischer鈥檚 book is full of recipes starring sea greens, but you don鈥檛 have to start with them as the center of a meal. 鈥淚 sprinkle seaweed over my pasta, cut it in little pieces to mix through a salad or stew, or just add it to any kind of soup I make,鈥 she says. In fact, certain types of dried seaweed can act like bullion, delivering a hit of salt and umami flavor without anyone even knowing it鈥檚 there.听

Get to Know Your Varieties

Right now, Smith is growing only sugar kelp (a common variety), but he says there are more than 10,000 known edible plants in the ocean鈥攑ossibly more. 鈥淢ost [seaweed] species are edible, but not all algae are equally suitable for the novice 鈥檞eed-eater,鈥 warns Kreischer. 鈥淭ypically, the most edible seaweeds are the ones that live in saltwater. Freshwater algae are much less suitable for consumption.鈥 Some varieties are more pungent than others. Beginners should start with sea lettuce, which is light, crisp, and refreshing. More adventurous types may want to try oarweed, which has strong, salty flavors. 鈥淕iven the wide variation in taste and texture, it鈥檚 an adventure to find out what you like and which dishes they go well in,鈥 says Kreischer.听

Get Creative

The trick to getting Americans to eat more seaweed will likely be incorporating it into prepared foods beyond sushi rolls and miso soup. Right now, Smith is working on creating seaweed-based butters, jerky, bullion, and even ice cream. Kreischer聽would love to see it in more desserts. She swears sea greens pair beautifully with dark chocolate, and even included a dark chocolate and seaweed pie recipe in her book.听

Follow These Recipes

鈥淭his is beginning of a whole new culinary adventure, and home cooks have a chance to hop aboard,鈥 says Smith. Here are three ways to get on the sea greens boat right now, courtesy of Ocean Greens.听

Squash and聽Seaweed Pancakes

Makes about ten pancakes.

These are savory pancakes, so save your maple syrup for another day. Top them with sea green pesto (recipe follows), and dig in.听

Pancakes

  • 0.7 ounce fresh kombu
  • 鈥1 small hokkaido squash or other winter squash
  • 3 cups聽spelt flour
  • 1 tablespoon baking powder
  • 1 1/2聽teaspoons dried rosemary
  • 1 teaspoon paprika
  • 1/2 teaspoon curry powder
  • 1 tablespoon olive oil, plus more for cooking
  • 1 cup warm water
  • Fine sea salt and freshly ground black pepper, to taste

Extras

  • 1 x Pesto from the Sea (below)
  • 3 1/2 cups winter purslane, rinsed and dried
  • Extra virgin olive oil
  • Lemon juice
  • Everything Goes 鈥橶eed Mix (below)
  1. Thoroughly rinse the kombu to remove all the brine. Dab dry and chop. Peel the squash, remove the seeds, and cube the flesh.听
  2. Bring a pot of water to a boil and add the squash cubes; boil until tender, about eight聽minutes. Drain and blend in a food processor into a smooth puree. Separate 1 2/3 cups聽of puree for the pancakes. If there鈥檚 extra, you can freeze it for later.听
  3. Combine the flour, baking powder, rosemary, paprika, and curry powder in a bowl. In another bowl, mix the squash puree with the oil, kombu, and warm water, and then add this mixture to the flour. Whisk thoroughly until you have a thick, smooth pancake batter. Season with salt and pepper.听
  4. Heat a splash of olive oil in a skillet, and pour some batter in the pan. Rotate the pan so you get a small, thick, round pancake about four聽inches聽in diameter. Cook until golden brown on both sides, about six聽minutes, flipping after three聽minutes. You can use a greased ring in the pan so all pancakes are evenly sized and perfectly round. Keep the pancakes warm by setting them on a plate that鈥檚 resting on a pot of simmering water.听
  5. Top the pancakes with Pesto from the Sea and fresh winter purslane. Sprinkle the purslane with some olive oil and lemon juice, and garnish with Everything Goes 鈥橶eed Mix.

Pesto from the Sea

Makes one聽eight-ounce聽jar.

This green pesto owes its intense and powerful flavor to kombu. It鈥檚 such an easy recipe that you can experiment with the ingredients as much as you like. The arugula and basil, for instance, can be substituted with any leafy green of your choice. The pine nuts can be replaced by any other type of nut, such as cashews or hazelnuts. You can even use sunflower seeds.听Serve the pesto on crackers, in a grilled vegetable sandwich, or in a bowl of pasta.

  • 1.4 ounces fresh kombu (or a mix of kombu and wakame)
  • 1/3 cup roasted pine nuts
  • 1 small garlic clove, minced
  • 1 cup聽fresh basil (including stems)
  • 1 cup arugula
  • 2 tablespoons extra virgin olive oil, plus聽extra for storing
  • 1 1/2聽teaspoons lemon juice
  1. Thoroughly rinse the kombu with water, making sure all pickling salt has been washed off. Dab dry and cut into pieces.
  2. Puree the kombu, nuts, garlic, basil, arugula, olive oil, and lemon juice in a food processor until the mixture forms a smooth paste.
  3. Put the pesto in a glass jar, cover with a layer of olive oil, and store in the fridge for up to two weeks. Always serve with a clean spoon to maintain freshness.

Everything Goes 鈥橶eed Mix聽

Makes seasoning for 20 meals.

Mix, toss, and sprinkle: That鈥檚 what this recipe comes down to. This mix is easy to make and delicious with all sorts of dishes: spaghetti Bolognese, cauliflower soup,聽pizza, salads, and even a good old sandwich. The Danish smoked salt, with its distinct and deep character, gives this mix an extra boost.

  • 1 cup raw cashews, peeled and unsalted聽
  • 1/4聽cup nutritional yeast聽
  • 2 tablespoons聽persil de la mer or dried sea lettuce flakes聽
  • 1/2 teaspoon Danish smoked salt

Combine all ingredients in a food processor and pulse until the mixture becomes fine and crumbly. Store in a closed container in a cool, dark place for up to one month.

Recipes from 漏 Lisette Kreischer, 2016. Reprinted by permission of the publisher, . Available wherever books are sold. 聽聽

Lead Photo: Ocean Greens

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