The Spring Porcini Conundrum

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spring porcini salad recipe
Photo by Holly A. Heyser

Spring porcini mushrooms are, to most of the world, an oxymoron: Porcini are a fall, even a winter mushroom, right? Look into the recipe archives of the French, the Italians, Germans and Eastern Europeans and virtually every recipe for Boletus edulis involves wintry mixes of cream, stock, red meats, heavy sauces and such.

None of that works here in the West of the United States. Here, from California to Seattle, we get spring porcini, Boletus rex-veris, a springtime butter bolete, B. appendiculatis — and in Colorado and the Rocky Mountain states they get a big flush of a similar bolete after their monsoon rains of late July. Yes, we do get the fall porcino, too, but that’s another story.

What’s more “spring” porcini hit here right as spring fades into summer, late May through June. So if you are a cook or a forager here, you need to devise your own way of celebrating this harvest. San Franciscans, who buy a lot of spring porcini, can do with them as they would fall porcini because in summer their city is fog-bound and chilly. Here in Sacramento, it was 108ºF two days ago. There will be no stews or braises going on in my kitchen for many months. I need to find another way.

Here’s what I’ve learned over the years: First off, our spring kings, as they are called, are milder and firmer than the fall variety, which on the Pacific Coast is B. grand edulis. So they will not have that deep, rich porcini aroma that the fall mushrooms possess.

This is fitting, considering that deep and earthy isn’t exactly what we think about when the temperatures begin to rise. Spring kings are cleaner tasting, a little crisper, too. If you’ve ever had a king trumpet mushroom, which you can buy in stores, it’s pretty close and is a great substitute.

I asked a number of chefs and serious porcini hounds about what they do with their spring kings, and the universal answer was cook them simply with whatever seasonal vegetables happen to by lying around. Grilled porcini were the first choice, followed by searing them or broiling. I’ve also confited them in duck fat and that was pretty damn, good too.

three spring porcini
Photo by Hank Shaw

You have two main choices on how to cook your porcini. Sear them hard so that they give up their water, or brown them gently so they retain it. Hard-cooking a porcino will shrink it, make the mushroom denser and concentrate its flavor. But with spring kings the result is more “generic mushroomy” than anything else. These days I prefer to sear them on the cut side to get some nice browning — we all love the Maillard reaction, after all — but only gently cooking the rounded side of the mushroom by basting it with hot clarified butter. The technique is a lot like how you sear fish.

The result is a moister, springier mushroom that retains a bit of the complexity a heavily cooked shroom will lack. I like this method better when the porcini are the star, and the harder cooked method when meat is the star of the plate and the mushrooms the accompaniment.

spring porcini recipe
Photo by Holly A. Heyser

What to cook spring porcini with? If they are the main event, as they are in the salad I made below, think of spring kings more as a stand-in for white meat poultry or fish. If you are using spring kings as a side dish, again, think about fish or chicken or turkey as the main course. Can you pair a spring king with venison steak or duck? Sure, but morels would be a better choice, or even shiitakes.

Light flavors, a light hand with cooking, light dishes. This is the realm of the spring king, the rex-veris.

spring porcini recipe
5 from 5 votes

Spring Porcini Salad

Since spring and summer collide when spring porcini are in season, I thought the salad should, too. So it combines the last of the asparagus and fava beans with the first of the corn and squash. Feel free to play with the vegetables to suit what's in season where you are. As for the mushrooms, you can substitute the large king trumpet mushrooms you see in supermarkets for the spring porcini. If a pinch, you could also substitute the cap of a really large cremini mushroom. It won't be the same, but it will still be good.
Course: Salad
Cuisine: American
Servings: 4 people
Author: Hank Shaw
Prep Time: 15 minutes
Cook Time: 20 minutes
Total Time: 35 minutes

Ingredients 

  • 4 porcini buttons, sliced in half lengthwise
  • 4 tablespoons clarified butter or olive oil
  • Salt and black pepper
  • 2 pounds fresh fava beans, shelled and blanched, or 1/2 pound shelled peas
  • 1 pound asparagus, blanched
  • 12 small green onions, white parts and green parts separated
  • 2 ears of corn, shucked and kernels cut off
  • 4 small squash, sliced into coins
  • Grated salt-cured egg yolk, for garnish (optional)
  • Fennel fronds, for garnish (optional)

Instructions 

  • Once you have the favas shelled and blanched and the asparagus blanched -- boil both in salty water for 90 seconds to 2 minutes, then plunge into an ice water bath -- toss the favas with a little olive oil and set aside. Slice off the top 1/4 of the asparagus and toss with the fava beans. Use the rest of the asparagus for another use. Or add it to the salad anyway -- it makes no difference. Add the corn kernels to the bowl with the favas and asparagus.
  • In a large saute pan, heat 2 tablespoons of the clarified butter or olive oil over high heat. When it's hot, sear the squash until you get some nice browning, about 4 minutes. Turn the squash pieces once, and salt them well as soon as you turn them. When they're done, move them to the bowl with the favas, asparagus and corn.
  • Add the remaining clarified butter or olive oil. When the butter is hot, set the porcini cut side down and sear. You may need to press them down with a spatula; sometimes they will arc upwards and you won't get a good sear unless you do. Sear undisturbed for 5 minutes, or until the cut side is nicely browned. As the porcini cook, toss in the white parts of the green onions so they can cook, too. Use a spoon to baste the mushrooms with the hot butter. Do this pretty much constantly so the round side of the porcini cook. Salt them while they are still in the pan.
  • To serve, add the green parts of the green onions to the bowl with the rest of the vegetables and toss to combine. Ass salt to taste. Portion some out to everyone on plates. Give everyone 2 halves of a porcino with a little of the onions. Grind some black pepper over everything and garnish with the egg yolk and fennel fronds, if using.

Nutrition

Calories: 482kcal | Carbohydrates: 67g | Protein: 25g | Fat: 16g | Saturated Fat: 2g | Sodium: 31mg | Potassium: 1635mg | Fiber: 19g | Sugar: 15g | Vitamin A: 1726IU | Vitamin C: 51mg | Calcium: 164mg | Iron: 7mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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About 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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5 Comments

  1. Maybe the best post McCloud Mushroom Festival dinner!! We used this suggestion for cooking spring boletes to make a yummy fettuccine with asparagus, snap peas and Meyer Lemon beurre blanc.

  2. Fratello,
    I have *always* thought that the spring porcini, while excellent, are a close second to fall porcini.
    Where my family is from (northern Italia), they find their funghi in June/July-about like our spring mushrooms.
    My late nonna always said that California (fall) porcini were better than the Italian ones: not by a large margin, mind you, but better.
    Great read!

  3. Nice recipe! I might make this tomorrow if I have any luck. Fingers crossed! We have been lucky enough to find the strength to dehydrate some for later. The other night we had them sautéed in butter and served with scrambled eggs and a spring salad. Simple and yummy.

  4. Just wish they were easier to find… 🙂 But isn’t that every mushroom? Found about a half dozen around Lake Wenatchee, WA, this year but only one that wasn’t wormy yet. (It was delicious)

  5. How about King Mushrooms in a lite cream sauce served over our other King of spring, the Chinook Salmon, maybe topped with pine tips or spring ramps or onions? Great post thanks Hank!