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Home » Foraging » Mushrooms » Porcini Powder

Porcini Powder

By Hank Shaw on April 3, 2020, Updated June 4, 2022 - 10 Comments

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Porcini powder is one of my secret ingredients. A pinch here and there adds depth and savoriness — umami — to whatever it touches. Here’s how to make it at home. 

Porcini powder in a mortar and pestle.
Photo by Hank Shaw

You can of course buy porcini powder, and if you are not a mushroom hunter, that is the easiest way to get your hands on some. Your other option is to buy dried porcini and grind them into a powder with a spice grinder.

Here’s how to go about making porcini powder from mushrooms you’ve collected. First, you need to know your mushrooms.

Porcini is the Italian name for Boletus edulis. This is actually a complex of species that live in many, many places around the world, and they are prized almost everywhere they appear. The Germans call them steinpilz, the French cepes, the English penny buns, the Spanish panza. Porcini is most commonly used in the United States. Incidentally, one of these mushrooms is called a porcino.

Now that said, porcini powder can be made really any edible bolete. And there are a lot of them.

Here in California, we have spring kings, B. rex-veris, as well as our fall kings, B. grandedulis, not to mention a raft of very similar bolete mushrooms like the butter bolete. The Rockies and Arizona have their B. rubriceps, which has a reddish cap. And the Midwest has B. subcaerulescens. Then there are the ivory colored Barrows bolete and the B. subalpinus… I could go on. A lot.

A whole other class of lesser edible boletes are perfect fodder for porcini powder. These are the suillus clan, the slippery jacks. Almost all of these guys are “meh” when eaten fresh, but when dried, many have an even more powerful aroma than true porcini. What’s more, American porcini tend to smell milder than the imported Italian ones; they’re different species.

A generally good rule of thumb when picking boletes is to follow these rules:

  • The mushroom has spongy pores, not gills.
  • Those spongy pores are white or yellow.
  • When bruised or cut, the mushroom does not stain blue.

If you follow those rules, you are in the clear. Nothing you pick will be actively toxic, although some might be gross. Now real mushroom people will chime in about the various delicious boletes that stain blue, notably butter boletes, but these rules are good for beginners.

Let’s assume you have some fresh porcini, or their friends, and you want to make porcini powder. What now?

First, for the love of all you hold holy, do not dry and grind pristine, beautiful button porcini, like these.

Pretty porcini mushrooms on a table.
Photo by Holly A. Heyser

If you do, I and other mycological jedi will feel a disturbance in The Force, as if millions of voices suddenly cried out in terror and were suddenly silenced. We will fear something terrible has happened. And it will have. You will have ruined one of the greatest joys in the wild world, a pristine porcino.

Unblemished porcini are not all that common. A variety of parasitic flies lay eggs in them that hatch into little black-headed maggoty things that can riddle a mushroom in days. Grrrr…

Wormy porcini mushrooms.
Photo by Hank Shaw

This one was too far gone even for me. But if a porcino is only slightly wormy, it is perfect for porcini powder. Dry it and grind it. What’s even better is to make your porcini powder from the sponge itself.

porcini sponge for porcini powder
Photo by Hank Shaw

Yep, just that part. Why? Unless it is from a super young mushroom and is white and tight, the spongy pores will cook up, well, spongy. Not a great texture. Fortunately, they come off the mushroom easily.

Removing the \"sponge\" from porcini mushrooms.
Photo by Hank Shaw

Gather them up from even nice mushrooms and dry them separately. And guess what? porcini powder made from the sponge is more aromatic and flavorful than from the rest of the mushroom. So you’ve turned the worst part of the shroom into something useful.

How to Use Porcini Powder

Once you have your powder, you can use it in a variety of ways.

I’ve added a few tablespoons into flour tortilla dough, and it would be good in bread dough, too. Porcini pasta, too. You can add it like a spice to anything you want a savory, earthy note to, like chili, or a meat stew, or if you are a vegetarian, porcini powder will make a typical vegetable stew as “meaty” as one with beef.

A dash of the powder boosts flavor in a porcini risotto, too. Or any other mushroom risotto. 

It is great in spaghetti sauce. It is fantastic mixed with other herbs and spices of your choice and used as a coating for venison or beef or pork: I like to roll a length of venison backstrap in porcini powder after it’s been cooked but before it has rested.

Pretty, fresh porcini mushrooms.
Photo by Holly A. Heyser

Another great use is to add a spoonful of porcini powder to a pan sauce. So after you’ve cooked your meat, add minced shallots or onions and let them cook a bit. Add a chopped herb, like rosemary or sage or thyme, then the powder, then a splash of wine or whisky. Salt to taste and you’re good.

But where I mostly use my porcini powder? As an additive to meatballs, meatloaf and sausages. I’ll even sneak a bit into a burger, especially my venison mushroom burgers. If you only add a spoonful or two, you won’t taste it per se, but the meat will be more powerfully flavored.

Finally, once you have some, porcini powder lasts more or less forever in a cool, dry place. One tip? Put one of those silica packets into the jar. It will suck out any stray moisture that can ruin your powder.

Porcini powder in a mortar and pestle.
Print Recipe
5 from 1 vote

Porcini Powder

This is how to make porcini powder, but it works with any dried mushroom. Morels and black trumpets are other great options. It assumes you are starting with fresh mushrooms.
Prep Time20 mins
Cook Time0 mins
Drying Time3 hrs
Total Time3 hrs 20 mins
Course: Condiment
Cuisine: American
Diet: Gluten Free
Servings: 20 servings
Calories: 5kcal
Author: Hank Shaw

Equipment

  • 1 Dehydrator
  • 1 spice grinder

Ingredients

  • 1 pound fresh mushrooms (see below)

Instructions

  • If you are working with boletes like porcini, slice them in half. Any that are marginal, as in slightly wormy, should be dried. Ones with no worm holes should be eaten fresh. Remove any of the "sponge" that is yellow and reserve.
  • Slice the mushrooms and arrange them on a rack for the dehydrator, along with the sponge if you have some. Dehydrate on low heat, ideally about 110°F, until they are crispy dry.
  • Put all this into a spice grinder and grind to a powder. You might have to return larger bits for re-grinding.
  • Store in a glass jar, ideally with a silica packet, in the pantry. Will keep for years.

Nutrition

Calories: 5kcal | Carbohydrates: 1g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Sodium: 1mg | Potassium: 72mg | Fiber: 1g | Sugar: 1g | Vitamin C: 1mg | Calcium: 1mg | Iron: 1mg
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Filed Under: Featured, Foraging, How-To (DIY stuff), Mushrooms

Avatar for Hank Shaw

Hank Shaw

Hey there. Welcome to Hunter Angler Gardener Cook, the internet's largest source of recipes and know-how for wild foods. I am a chef, author, and yes, hunter, angler, gardener, forager and cook. Follow me on Instagram and on Facebook.

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Comments

  1. Avatar for KatyaKatya says

    February 5, 2023 at 5:28 pm

    Thanks for sharing, very helpful.

    One point is that I’d be slightly wary of eating raw porcini powder (like when you mentioned coating cooked steak in it). Eating mushrooms raw is not recommended.

    Reply
    • Avatar for Hank ShawHank Shaw says

      February 5, 2023 at 5:31 pm

      Katya: For starters, the dehydration process fixes that problem, because you are dehydrating well over 100F. Second, porcini can definitely be eaten raw by most people; a few do get an upset stomach, it’s true, but with this mushroom you’re pretty safe.

      Reply
  2. Avatar for LARLAR says

    November 7, 2021 at 9:00 am

    This is one of the best non-video beginner’s guides I’ve seen, thank you – I’ll share it with a friend. Are there any descriptions of the actual drying and powdering process that you would recommend?

    Reply
    • Avatar for Hank ShawHank Shaw says

      November 7, 2021 at 11:48 am

      LAR: I can answer whatever questions you might have about that.

      Reply
  3. Avatar for MimiMimi says

    September 16, 2020 at 1:57 pm

    Hi Hank!

    Nice articles on boletes, thank you! I do have one question: I’ve tried drying the spongy bits of boletes several times but they always turned so smelly that I had to throw them out. Is that just a phase that passes or am I doing something wrong? I just laid them out to air-dry like I do with other stuff e.g. basil, ginger slices, etc. Thanks!

    Reply
    • Avatar for Hank ShawHank Shaw says

      September 16, 2020 at 2:59 pm

      Mimi: I dehydrate them next to the other pieces of mushroom. I think they might be rotting before they dry properly if you are getting a bad smell. I love the powdered dried spongy bits because of the aroma, but it is supposed to be mushroomy, not stinky.

      Reply
  4. Avatar for TrentTrent says

    August 18, 2020 at 6:18 am

    Hi Hank,
    Nice post on what to do when you have too much. Haven’t eaten wild Boletes yet, although I’ve picked and examined many. I was wondering, did you mean to say avoid staining blue and not yellow? Some folks new to shrooms might get confused as there are some Boletes that stain blue that will make you ill.
    Anyways, love your site and will be trying the powder soon.

    Reply
    • Avatar for Hank ShawHank Shaw says

      August 18, 2020 at 7:58 am

      Trent: Yes, I did mean that, and thank you for the catch! I fixed it.

      Reply
  5. Avatar for BalinaBalina says

    June 11, 2020 at 4:12 pm

    I wonder if i can try adding this to my Fermented recipes?? Anyone tried this?

    Reply
  6. Avatar for John GoodrichJohn Goodrich says

    May 29, 2020 at 2:47 pm

    Great post! Porcini powder will soon have a place next to the puffball powder in my pantry. Thanks for sharing it.

    Reply

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Hi, my name is Hank Shaw; I’m a James Beard Award-winning author and chef. I started this site back in 2007 to help you get the most out of all things wild: fish, game, edible wild plants and mushrooms. I also write cookbooks, have a website dedicated to the intersection of food and nature, and do a podcast, too. If it’s wild, you’ll find it here. Hope you enjoy the site!

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