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Home » Foraging » Acorn Soup

Acorn Soup

By Hank Shaw on October 12, 2015, Updated November 6, 2020 - 30 Comments

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4.75 from 8 votes
Acorn soup recipe
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Acorn soup recipe
Photo by Holly A. Heyser

Acorn soup is the first way I ever ate acorns. It was at a fancy restaurant in San Francisco called Incanto, and I was entranced that the chef, Chris Cosentino, could use acorns to make such a lovely soup. I never did get Chris’ recipe, but I came up with this one instead.

It is a smooth soup, deeply earthy and nutty from the combination of acorn flour and acorn “grits” — chopped up pieces that have had the bitter tannins removed — and porcini mushrooms. A dollop of creme fraiche, sour cream or even regular cream rounds everything out, and a few drops of really nice oil, such as squash seed oil, adds a lot, too.

If you want to make this, you will need to know about collecting and eating acorns. If acorns are just too weird for you but you want to make something similar to this soup, use chestnuts — even canned chestnuts make a good substitute.

But I urge you to consider the humble acorn. Most of you reading this have easy access to acorns, and while it takes time to make the flour, it is not difficult. The link above and in below the headnotes of this recipe will give you all the information you need to get started on what will likely become an annual rite of autumn for you.

Enjoy!

A bowl of acorn soup with slices of grouse.
Print Recipe
4.75 from 8 votes

Acorn Soup

This is an easy recipe to make -- if you already have acorn flour. If you don't have your own acorn flour, you can substitute chestnuts. If you can't find dried porcini mushrooms, any dried mushrooms will work. Don't skip the garnishes, however. They add a lot. I especially like the slices of grouse breast. I simply sear skinless grouse breast in butter until it's just barely done, then salt and slice thin. One tip: If you do skip all the garnishes, you can actually use this soup as a gravy for meats if you let it get thick. I prefer it thinner, however, with a consistency like melted ice cream.
Prep Time15 mins
Cook Time1 hr 10 mins
Total Time1 hr 25 mins
Course: Soup
Cuisine: American
Servings: 6 people
Calories: 273kcal
Author: Hank Shaw

Ingredients

  • 2 to 3 cups acorn bits
  • 1 carrot, peeled and chopped
  • 2 celery stalks, chopped
  • 1 medium onion, chopped
  • 3 tablespoons butter
  • 1 ounce dried porcini, soaked in 2 cups of hot water
  • 2 bay leaves
  • 1/3 cup brandy or bourbon
  • 1 quart chicken, beef, mushroom or vegetable stock
  • Salt

GARNISHES

  • Creme fraiche or sour cream
  • Chopped parsley
  • Sliced, seared grouse, pheasant or chicken breast
  • Roasted squash seed, sunflower or other nice oil

Instructions

  • Soak the dried mushrooms in the hot water for an hour before starting. Squeeze the moisture from the mushrooms and chop coarsely. Save the water, straining it if there is a lot of debris.
  • Heat the butter in a soup pot over medium-high heat and saute the carrot, celery and onion until they are soft, but not browned, about 5 minutes. Add the chopped mushrooms and acorn bits and stir to combine. Saute another 2 minutes or so.
  • Add the brandy and boil it hard until it is almost gone, then add the bay leaves, 2 cups of mushroom soaking water and the stock. Bring to a simmer, taste for salt and add if needed. Cover and simmer gently for 1 hour.
  • Puree the soup in a blender (or use an immersion blender), then -- if you want to get fancy -- pass it through a fine-meshed sieve. If the soup is too thin, simmer it until you get a soup the consistency of melted ice cream. if it's too thick, add water or stock.
  • Serve with a drizzle of creme fraiche or sour cream. Add some chopped parsley, a few drops of nice oil (I prefer roasted squash seed oil) and, if you want it to be a main course, a few slices of grouse, partridge, pheasant or chicken breast.

Notes

The soup will hold for several days in the fridge if you want to make it ahead of time.

Nutrition

Calories: 273kcal | Carbohydrates: 7g | Protein: 15g | Fat: 17g | Saturated Fat: 7g | Cholesterol: 72mg | Sodium: 122mg | Potassium: 310mg | Fiber: 1g | Sugar: 2g | Vitamin A: 2039IU | Vitamin C: 4mg | Calcium: 23mg | Iron: 1mg
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Filed Under: American Recipes, Featured, Foraging, Recipe

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 ArturArtur says

    November 5, 2022 at 3:46 am

    According to the instructions, the bay leaves are added before the soup is run in a blender.

    Should the leaves be removed, or should they be in the puree as well?

    Thanks

    Reply
    • Avatar for Hank ShawHank Shaw says

      November 5, 2022 at 8:30 am

      Artur: Yes, remove the bay leaves. It’s no harm dome if you puree them, but they are pretty fibrous and you’d need to strain it out through a sieve.

      Reply
  2. Avatar for BaelayaBaelaya says

    November 23, 2020 at 4:55 pm

    Would sesame seed oil work?

    Reply
    • Avatar for Hank ShawHank Shaw says

      November 24, 2020 at 8:25 am

      Baelaya: Sure.

      Reply
  3. Avatar for DavidDavid says

    January 21, 2020 at 8:17 pm

    Great acorn dish

    Reply
  4. Avatar for JohannaJohanna says

    October 21, 2018 at 4:33 pm

    What a wonderful soup! There are many layers of flavor, and they combine beautifully. I felt a real sense of accomplishment making this from homemade acorn grits and chicken stock. Well worth the effort and time it takes to get this soup right. Thank you, Hank, for introducing me to the incredible edible acorn.

    Reply
  5. Avatar for MARIUM JMARIUM J says

    May 12, 2018 at 3:30 pm

    Where do I buy acorn flour and where on the recipe is it used?

    Reply
    • Avatar for Hank ShawHank Shaw says

      May 12, 2018 at 3:33 pm

      Marium: Step 2. I have no idea where you can buy it. I make my own.

      Reply
  6. Avatar for MarianneMarianne says

    December 28, 2017 at 10:49 pm

    This was my first recipe I ever made with acorns. (Or any foraged food for that matter). This is the best, it is my go to recipe and it is what broke me into foraging. Yes, your soup recipe was made first foraging endeavor! Now I’m crazy about it!! Thank you!

    Reply
  7. Avatar for Jennifer ZJennifer Z says

    October 12, 2017 at 6:36 pm

    If I do have acorn flour, how should I use it in this soup recipe? And how much would I need?

    Reply
  8. Avatar for Melissa ArvisaisMelissa Arvisais says

    January 31, 2017 at 4:04 am

    How many cups of acorn flour should I use for this recipe? Is it the same as acorn bits measurements?

    Reply
    • Avatar for Hank ShawHank Shaw says

      January 31, 2017 at 8:30 am

      Melissa: Pretty much. Maybe a little less.

      Reply
  9. Avatar for Marc PigeonMarc Pigeon says

    September 29, 2016 at 1:53 pm

    Hi, you call for acorn bits but also refer to it as flour. I have fine acorn flour that I made using your technique. Will fine flour work or do you need the chunks? Thanks.

    Reply
    • Avatar for Hank ShawHank Shaw says

      September 29, 2016 at 9:41 pm

      Marc: Both work.

      Reply
  10. Avatar for CarolCarol says

    February 28, 2016 at 12:44 pm

    Great way to teach children to appreciate what’s in our backyard. They found and peeled the nuts from our red oak tree Now for the soup

    Reply
  11. Avatar for Dana CorbyDana Corby says

    February 8, 2016 at 3:26 pm

    My acorn flour recipe is a lot different, and since it includes toasting the nuts I’m not sure it would work here.

    Gather, pick over, and shell the acorns. Bring a huge pot of water to the boil, and ad the acorns. Reduce the heat and simmer until the water is very discolored; during this first simmering, skim off the acorn skins asthey separate from the nuts and rise to the top. Drain off the water, fill the pot back up with fresh water, and repeat 3 or 4 times until the water stays clear for 10 minutes.

    Spread the acorns on a cookie sheet and allow to cool while you preheat the oven to 250°F. Break the acorns apart at the natural separations and spread them uniformly. Bake several hours or until they are chocolate brown. Let them cool completely before either grinding them for use or storing — refrigerated or frozen — for later use. Bring to room temperature before grinding.

    Reply
  12. Avatar for SidSid says

    December 23, 2015 at 4:13 pm

    Thanks. For Christmas meal, with bone-in caul fat wrapped whole venison ham + Cumberland sauce spin-off (w/blueberries).

    Reply
  13. Avatar for SidSid says

    December 19, 2015 at 8:14 am

    How much volume of acorn flour to substitute for the bits of acorns?

    Reply
    • Avatar for Hank ShawHank Shaw says

      December 21, 2015 at 8:52 am

      Sid: I’ve never measured, I only do it 1:1 by volume. So it’s not an exact science. But keep in mind when I say acorn bits I mean tiny bits, like the size of a grain of rice.

      Reply
  14. Avatar for EE says

    November 5, 2015 at 12:52 pm

    for the soup, do you need “acorn bits” or “acorn flour”? You mention both.

    Reply
    • Avatar for Hank ShawHank Shaw says

      November 9, 2015 at 8:49 am

      E: Either work. I mostly do it with coarse meal, like polenta.

      Reply
  15. Avatar for JDJD says

    October 17, 2015 at 3:58 pm

    Ladyhawkke, the simplest way is very simple. Gather good clear acorns. If you can get them, Black Oak or Oregon Oak are very good. Hull them and get rid of the “paper” layer, the thin paper like brown skin around the nut. Pop the hulled acorns into a food processor or even a blender and pulse them to a coarse corn-meal consistency. Put the processed meal in a fine mesh strainer – some California Indians used the green cedar “needles” as a bed for the meal. Trickle cold, fresh water over the meal. I’ve done this in the kitchen sink and I know both Miwok and Maidu who do the same. Taste the water coming out of the strainer periodically, and stop when it tastes sweet or nearly so. Many native people will tell you they stop leaching to preserve some flavor. Traditionally, they were also interested in acorn blends with a mix of acorns from different species. The meal is then ready to use. I and my daughter would simply microwave it and have it with butter and brown sugar for breakfast. If properly leached, the flavor is reminiscent of walnuts.

    Reply
  16. Avatar for LadyhawkkeLadyhawkke says

    October 16, 2015 at 2:16 pm

    I don’t know how to leach the bitter tannins out. I went shopping today and there were tons of acorns on the ground and I gathered them for the squirrels. And then I decided to break one apart and taste it. It really wasn’t bad. I am interested in making the soup. Thank you.

    Reply
    • Avatar for Hank ShawHank Shaw says

      October 16, 2015 at 2:18 pm

      Ladyhawkke: I provide a link to the process in the post. Here it is again: https://honest-food.net/2013/09/26/acorn-flour-recipe-cold-process/

      Reply
  17. Avatar for HeidiHeidi says

    October 15, 2015 at 3:13 pm

    We have two different types of oak here. American with the “longer” nuts and the European with the rounder nuts. Can use them both? And can I use them straight from the tree? Do I have to soak them first?
    greetings, Heidi

    Reply
    • Avatar for Hank ShawHank Shaw says

      October 15, 2015 at 4:07 pm

      Heidi: Yes, you need to leach out the bitter tannins first. And I would not mix the acorns, as one variety will likely take less time to leach than the other.

      Reply
  18. Avatar for JodiJodi says

    October 13, 2015 at 4:22 am

    I have some acorns leaching right now. Thanks for sharing, I just might try this recipe out 🙂

    Reply
  19. Avatar for BenBen says

    October 12, 2015 at 4:28 pm

    Looks great! What do you think about seared wood duck breast instead of grouse?

    Reply
    • Avatar for Hank ShawHank Shaw says

      October 13, 2015 at 2:28 pm

      Ben: A natural choice! Go for it.

      Reply
  20. Avatar for Mad DogMad Dog says

    October 12, 2015 at 11:19 am

    Thanks Hank, I’m very interested in the whole process of collecting acorns and cooking them.

    Reply

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Hank Shaw holding a rod and reel in the American River

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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