Pepper Dulse – Edibility, Identification, Distribution

Osmundea pinnatifida

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pepper dulse close up

  • Identification – 3/5 – Quite distinctive when you tune in to it, though novices may confuse it with other small brown seaweeds like caragheen. Look for small (1-6cm) flattened fronds, irregularly branched, though usually roughly pyramidal in outline. The colour can vary according to where and when it is growing, from yellowish-green (higher up the shore, in summer) to deep chocolate brown (lower down, winter). The taste is very distinctive and as no seaweeds growing in inshore tidal zones are toxic, this is a good way to confirm ID.
  • Edibility – 5 /5– A true gastronomic gem. Surprising, intense, mineral, aromatic, fishy, peppery, garlicy, powerful umami. Variously described as “The Truffle of the Sea” and as a cross between truffle and lobster.
  • Habitat – Clinging to rock from mid tidal range downwards
Seaweed distribution by tidal range Click image to enlarge © GallowayWildFoods.com

Seaweed distribution by tidal range
Click image to enlarge
© GallowayWildFoods.com

  • Distribution – 5/5 – Very common in suitable habitats within its tidal range. Best picked, as with most seaweeds, where it is washed by strong currents.
  • Season – All year round, but at its best December-May
  • How to harvest – trim from the rocks with scissors. DO NOT PULL as this will bring crumbs of rock and barnacle with it. Don’t clear whole areas – spread your picking around.
  • How to eat: Fresh and raw (ideally with the waves crashing at your feet), or dried as a rich aromatic seasoning

This amazing little seaweed packs an extraordinary flavour that you really have to taste to believe. I’ve fed it fresh to food lovers who reacted with such amazement, delight and determination to have more, that I expect they are now to be found living in coastal caves as ragged pepper dulse junky hermits, venturing out twice a day to gnaw it fresh from the rocks…

pepper dulse

One of my very favourite foraging experiences is gathering and eating pepper dulse on the shore, with the waves breaking about my feet. For me, the flavour is deeply elemental – of rock, sea and brimstone. If you inadvertently pull it from the rocks (rather than trimming with scissors as it should be done), it brings with it some of the rock and barnacle to which it clings. I think this close integration with its rock home that gives it its intense minerality. Seaweed forager extraordinaire, Rory “Fresh From The Sea” MacPhee (to whom I am hugely indebted for introducing me to this delight) believes pepper dulse to live in close and complex mutualism with smaller marine algae and shellfish.

Harvesting pepper dulse

Harvesting pepper dulse

More scientifically, much of the flavour may be due to the presence of terpene, a class of strong-smelling organic compounds that are also found in conifer resin and many essential oils. There is little published research into the nutritional profile of pepper dulse, but my instinct tells me that, while it may contain many of the beneficial minerals and proteins of other seaweeds, it shouldn’t be eaten in large quantities. This is unlikely to be an issue, as the flavour is so intense, you’ll never need much. Unless you become a certified peppy-D junky like me and over-graze it!

Pepper dulse laid out for drying

Pepper dulse laid out for drying

It is possible to buy pepper dulse from commercial harvesters and processors in dried form. This is still a magnificent ingredient that can be used in place of salt, pepper and various spices in many savoury dishes. But really, its but a shadow of its fresh self. Having a fridge-life of about 2 days, I doubt you’ll ever be able to buy it fresh. The purest gastronomy is in tasting this seaweed free, among the rock and foam of its elemental home. Why pay infinitely over the odds for less than half the pleasure…?

Sashimi Umami Bomb: Bouchon cep cap, spoot clam, pepper dulse

Sashimi Umami Bomb: Bouchon cep cap, spoot clam, pepper dulse

Apart from just nibbling it fresh, I like to add the fronds to wild sushi and sashimi, or lay them on pieces of smoked egg. Coat the rim of a glass with it in dried, powdered form to make a filthy dirty martini (add a spiral wrack caper instead of a salty olive), or sprinkle it on soft boiled eggs. As a spice, the only limits are your imagination – i’m still experimenting, but as is so often the case with wild foods, keeping it simple often works best – sprinkle it on fish or (even better) shellfish before grilling.

Related pages:

Pepper dulse, Skye Cuillin beyond

Pepper dulse, Skye Cuillin beyond

 

 

14 Comments

  • Hi Mark!!!
    You gave me & my husband Mark a brilliant wild foods tour in July (at Glenapp) when we were on honeymoon. I’ve since launched my spice business and am currently working on a blend with dulse! I’m not sure it’s the pepper dulse you write of here, but it’s from Maine & tastes delightful. My blend incorporates dried mushroom and nettles, among other things. Going fora deeply umami spice blend for soups and fish and the like. Anyway, I think I’m also becoming a Dulse junky! Cheers, Claire

    • mark says:

      Great stuff Claire. I make a lot of fungi/seaweed stock powders – they are highly synergistic. Cheers, Mark.

      • Bela says:

        Hello Mark, this post was great! Thanks for the inspiration! Please let me know how do you prepare a stock powder. I do dry pepper dulse by myself and I would like to have any idea how to toast it or to smoke it. I use pepper dulse stock almost for everything!

        • Mark Williams says:

          Hi Bela, I just dehydrate it then powder it. On its own it works as peppery seasoning. Mixed with laver or dulse powder it becomes a more rounded stock. Cheers, Mark

  • james jamieson says:

    when i was lil my dad used to bring (peeper dulce) in lil paper bags from the glasgow barras, was amazing!
    i got 2 q’s if you got time?

    1, do you sell it?

    2, do you do foraging courses?

    many thanks for your time and i LOVED the junky/cave gag, be safe, jim

  • Jan & Mun Gold says:

    Just been back out to where you took us in March to forage for seaweed at Gress, Isle of Lewis. We went prepared with waders and dry suit to wade out to the rocky area and successfully gathered sugar kelp and (I think) pepper Dulse, as well as sea lettuce. Now need to dry the fruits of our labour to last until next Spring! Many thanks for your guidance and inspiration! We couldn’t find any sand clams or spoots, though, are they seasonal?

  • Lucy Frost says:

    I laughed all the way through your wonderful descriptions. I have discovered this amazing little seaweed in Cornwall and am definitely becoming one of your pepper dulse junkies … threatening to take up residence in a cave any minute, much to my husband’s dismay. Am about to buy some fresh crab this morning and will be foraging later … but just where is my little secret.

  • bobby keegan says:

    Hello!!
    thanks for your article and your website generally its a fantastic resource to the keen forager. i have just had a great evening up to my knees in spring water feasting on pepper dilisk and sea spagetti in the glorious sunshine. epic. i came home and have been drying the pepper dilisk in the oven… wow, my eyes are burning to the extent that i cant actually sleep now. it is very potent stuff indeed. has anyone else experienced this ??

    Bobby

    • Mark Williams says:

      Hi Booby,
      I’m glad you are finding the website useful.
      Yes, when exposed to heat, i’ve heard of people getting “pepper spray” experiences! Potent stuff indeed. I generally try to dry it at as lower temperature as possible to avoid this (loss of flavour?), berhaps drying it at a higher temperatures creates a whole new treat..?
      Cheers,
      Mark.

  • Dear Mark,
    Could we pls ask you assistance to obtain a 100g sample of the Pepper Dulse Seaweed. Would a specification be availble? Is it available as a powder?
    We would like to look at the Pepper Dulse Seaweed in our flavour creations work in Australia.
    Many Thanks

    Bruno Briedis

  • Dear Mark,
    Could we pls ask you assistance to obtain a 100g sample of the Pepper Dulse Seaweed. Would a specification be availble? Is it available as a powder?
    We would like to look at the Pepper Dulse Seaweed in our flavour creations work in Australia.
    Many Thanks

    Bruno Briedis
    Site Purchasing Manager RM FL
    Phone: +61298274030, Mobile:+61420305617
    Givaudan Australia Pty Ltd, 12 Britton St, Smithfield, NSW, 2164, Australia

    engage your senses: http://www.givaudan.com

  • Dear Mark,

    Can you pls advise on procedure to obtain a 100g sample and specification of the Pepper Dulse Seaweed

    Many Thanks
    Bruno

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