ACORNS: A Major North American Food Source

California Indians did not have to be farmers, and for the most part were hunters and gatherers. There was a ready supply of deer, fish, rabbits, foul, native plants for vegetables, native fruits, and even sea weed. Even so, acorns are said to have been the main food of as many as 3/4 of our native Californians. Acorns were everywhere, are easy to gather and store fairly well … as long as your storage places are squirrel tight. Some groups buried baskets of nuts until they were needed. Some claim that white acorns were the most preferred because they were sweet and often eaten without leaching.

The most common oaks found in the San Francisco Bay area are the Tan Oak, Black Oak, California Live Oak, and Valley Oak. Many of these have been seriously endangered through the process of turning pasture land into housing developments, with the Live Oak being the least threatened — since this oak is not deciduous, it offers “building development appeal” by remaining “green and healthy looking” all year.

Many of the Pomos prefer the Tan Oak because they feel it has more flavor. Many of the MiWuks prefer the Black Oak because it takes less leaching to get rid of the tannin. Many of us don’t like the California live oak because “its too much work for the amount of meal you get compared to the amount of leaching you have to do,” “its got no charachter,” “too wormy,” or “its too easy to get — nothing that plentiful can be very good.” The list goes on and on. My favorite is the Black Oak … with a little Tan Oak added for character.

Acorns are gathered in the fall after they are ripe, Early in the season you will occasionally find acorns without their “little hats” lying on the ground. These are usually buggy. (If the acorn is so heavy that it pulls itself from its cap, it is usually because there is a worm flipping itself about inside the acorn, and all this activity is what breaks the nut free from its cap and the tree.) When the acorns are actually ripe, they fall from the tree, cap intact. If you see any holes in them, throw them away. They are sometimes stored first, to dry them out, and then shelled. Other groups shell them first, and then dry them out by placing them someplace safe, yet warm, to dry.

For the ultimate in information on processing acorn, refer to a new book about Yosemite’s Julia Parker, written by Park Naturalist Bev Ortiz which came out in 1992 or 1993. It was published by the same group that produces News from Native California, headed by Malcolm Margolin.

There is first and foremost, the original recipe: AFTER THE ACORNS ARE **COMPLETELY DRY** & REMOVED FROM THEIR SHELLS, the Acorns are ground until the meal is so fine that “it will stick to the basket sifter” when it is turned upside down. When you have determined that you have ground the acorns to “primo” consistency, you must then leach it. This was traditionally accomplished (before we had woven cloth to work with) by building a mound of fine sand, near a spring or the river, and then scooping out the center. The meal you wished to leach was placed in the center of this mound and water poured over a clean cedar bough which was placed or held above the acorn meal. The tannin would leach out of the acorn meal and harmlessly down into the sand. When tasting it showed the tannin had been removed, the meal was carefully removed from its sand “colander” and put into a cooking basket. Water is added — the correct amount for the amount of acorn meal you are going to use, which is something that takes a while to adjust to. Too much water will require cooking longer to get the consistency you want. Not enough water and the acorn will burn. Then special cooking rocks were heated in a fire, rinsed off, and using special stirring sticks, the rocks were stirred in the basket to heat the acorn solution thoroughly. As each rock cooled down, it was removed, and another hot clean rock took its place in the cooking basket. The rock that had been removed was washed off and placed back in the fire to reheat and await its turn to become a cooking implement once again. In what seems like no time at all, the acorn soup is boiling, and the stirring continues until the soup is of the desired consistency — either thin to eat with a spoon, or thicker to eat with a fork, depending on what the “cook” has in mind. Though the above “soup” was eaten straight by the traditional people, I usually add a little salt, and occasionally some dried currents or blue elderberries, or even raisins. Some people like to add a little cinnamon.

The rocks are saved for the next time, since finding perfect rocks that won’t explode when subjected to heat, or won’t crumble into the food, or give a bad taste, etc., are not as easy to find as you might think. The baskets, tools, implements, rocks, etc. used to cook acorn are considered a family legacy and kept within a family to be passed down from generation to generation. What makes a good cooking basket is the subject of another dissertation and shall not be gone into at this time. Ask the next expert basket weaver you meet to explain to you how a cooking basket is made.

ALTERNATIVE LEACHING METHODS, & NATURAL DYING USES

The alternative method of leaching, which I personally use (as do most of the people I have spoken to about this subject) is to take my winnowing basket (or a broad-bottomed basket), place a clean, “white” UNBLEACHED cloth (like a tea towel used just for this purpose….which will never be white again) in the bottom of the basket, and then place your finely ground acorn meal on top of the cloth. Then I get a piece of cedar branch (new growth preferred and place it on top of the acorn meal and run water on it, VERY SLOWLY. I place my basket on top of a large cooking pot (so that I can save the tannin water) in such a way that when the pot fills up, my basket won’t be sitting in the water, and the pot can overflow. I check on the leaching process periodically, so I can empty the soup kettle as it fills. Since I am also a weaver and spinner, who does natural dying on occasion, a day or two before I know I’m going to be leaching acorn, I wash any uncolored wool fleece I may have on hand that I will want to dye later, or any white yarn I want to dye in the near future…IF I REMEMBER. Sometimes I don’t plan ahead. Anyway, as the acorn leaching pot fills, I will pour this tannin-filled water into the washing machine, where I later place up to 3 or 4 lbs of clean white wool or yarn to soak up the tannic acid solution. When I am ready to dye the wool at a later date, the color will come out much more dramatically that it would if I had used “untreated fleece”.

Another way I have heard of to leach acorn, which I have NEVER tried and probably never will, is to SCRUB the water tank on your toilet to remove any algae, and use this “sanitary” part of your toilet to leach your acorn meal. It makes sense to use water that otherwise is wasted but it doesn’t seem like a very aesthetic topic of conversation for a public gathering … I can hear it now: “Gee, this acorn mush isn’t half bad …. you must have leached it really thoroughly.” “Why yes I do; I let it sit in a clean muslin bag in my toilet tank for a week or so…” Then watch your dinner guests put their food down, never to eat at your camp fire again. The girl that shared this bit of information with us had just remodeled her house, had a brand new toilet, and hence no green film in the tank, so she thought it was the perfect opportunity to try out a method she had heard of, or had a theory about. She also went on to say, that she was glad her new toilet was a pale brown color because the tannin discolored her the toilet bowl for quite some time….

Below is a recipe that I have used as recently as last year which is a good one to serve to those who stubbornly believe that acorn meal is yucky … they’ll never even know its there unless you tell them later — and then they’ll say things like “oh, that’s why it was so bland,” or “oh, that’s why I didn’t like it,” or “that’s why it got hungry an hour later.” If you want to be sure you are actually tasting the meal, use the recipe exactly as is. Once you feel confident that you wish to include the meal, but you want to add more character to the stew, feel free to add garlic, green pepper, carrots, etc. The acorn then replaces the starch of the potato, and provides you with more nutrition than the potato would provide.

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Traditional Venison Acorn Stew

To make venison stew, you will need the following:
2 lbs venison, cut up
1 Cup finely ground acorn meal

Cover venison with water in pot or basket; Add hot rocks to simmer until meat almost falls apart. Remove meat from broth and chop into fine pieces. Return to pot with liquid and stir in acorn meal. Serve hot.

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Acorn Stew

To make stew, you will need the following:
1 lb stewing beef
1/2 C finely ground acorn meal (tannin removed)
Salt and pepper to taste
Place beef in heavy pan and add water to cover. Cover with lid and simmer until very tender. Remove from liquid and cut meat into very fine pieces. Return meat to the liquid. Stir in the acorn meal. Add salt and pepper as desired. Heat until thickened and serve.

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Ethnic food enthusiasts like to substitute acorn meal for corn meal when making muffins — usually using 1/2 corn meal and 1/2 acorn. Some have substituted 1/2 of the flour in a biscuit recipe with 1/2 acorn meal. Experiment carefully, remembering that a good portion of the work performed by flour has to do with the gluten in the floor. Acorn has no gluten, so you’ll have to keep this in mind. Here is a modern Acorn Bread recipe from the book “Cooking with Spirit,
– North American Indian Food and Fact”, By Darcy Williamson and Lisa Railsback Copyright 1987 by Darcy Williamson. Published by Maverick Publications, Drawer 5007, Bend, Oregon 97701.

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Acorn Bread

To make bread, you will need the following:
6 Tbl. cornmeal
1/2 C cold water
1 C boiling water
1 tsp sale
1 Tbl butter
1 pkg active dry yeast
1/4 C lukewarm water
1 C mashed potatoes
2 C all-purpose flour
2 C finely ground leached acorn meal

Mix cornmeal with cold water, add boiling water and cook 2 minutes, stirring constantly. Add sale and butter and cool to lukewarm. Soften yeast in lukewarm water. Add remaining ingredients to corn mixture, along with yeast. Knead to a stiff dough. Dough will be sticky. Cover and let rise in warm place until doubled in bulk. Punch down, shape into two loaves, cover and let rise until doubled in bulk. Bake at 375 degrees F for 45 minutes.

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Acorn Griddle Cakes

To make cakes, you will need the following:
2/3 C finely ground leached acorn meal
1/3 C unbleached flour
1 tsp. baking powder
1/3 tsp. salt
1 Tbl honey
1 egg, beaten
3/4 C milk
3 Tbl melted butter

Combine dry ingredients. Mix together egg and milk, then beat into dry ingredients, forming a smooth batter. Add butter. Drop batter onto hot, greased griddle. Bake, turning each cake when it is browned on underside and puffed and slightly set on top. Makes 12 to 15.

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Marjory


Contributor

Marjory Wildcraft is an Expedition Leader and Bioneer Blogger with The [Grow] Network, which is an online community that recognizes the wisdom of "homegrown food on every table." Marjory has been featured as an expert on sustainable living by National Geographic, she is a speaker at Mother Earth News fairs, and is a returning guest on Coast to Coast AM. She is an author of several books, but is best known for her "Grow Your Own Groceries" video series, which is used by more than 300,000 homesteaders, survivalists, universities, and missionary organizations around the world.


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17 Comments
  • Grannie Annie

    In the Acorn Bread recipe, “sale” should be “salt”, both in the ingredients list and in the mixing instructions.

    Looking forward to testing this recipe!

  • Tallan Acalin

    When I was in grade school back in the 70’s ! We went to one of the local Indian Museaums where they had a tutorial on how tto use Acorn Meal to make Tortia like bread & they showed how to Grind it up on long flat Mortor stones, How to leach it & then how to add other all natural plant ingredants, + a small amount of water to make a sticky dough & then to flaten it out & how to cook it either on a flat rock or in an Adobe cook oven ! which was also showen how to be made, But was instructed not too as it would require Adult supervision.

    But I have a Photographic Memory & 187 I.Q. & if I were to make Acorn or any other Tree-Nut Tortias/flat bread ! I would use a simple to make Solar Powered Electrical Flat Griddle.

    The leaching process that was tought was somewhat differant or maybe they were just using an all Cedar Woven Basket !

    • Profile photo of Marjory Wildcraft

      Hi Talln,

      I really want to get a big stond and grider like the old way, but have to confess right now I use a blender.

      LOL.

      but I absolutely love acorn meal.

      Hey, what a delight to have seen the whole process.

  • Pauline

    When the grid goes down, what of what use are videos? huh? huh? huh?
    I have no patience with e”books.” In my opinion they’re not books!
    What I want is a real book (hard copy, I guess) that I can carry with me and read as needed. Do you have any?
    I’ve just become acquainted with your material on the internet and find it interesting. Thank you. I’m sure you have a lot of information to offer.

    • Profile photo of Marjory Wildcraft

      Yes Pauline, that is an important point about the reliance on digital – you are not the first to think of that. And there is the other thing about cost and physical delivery.

  • Dave S.

    One traditional alternate way of harvesting acorns was to gather acorns, spread them around a fire and roast the nut near the fire until it cracked, turning them frequently for a uniform roast. Then the nut meat was removed, put in a hole in the ground lined with small rocks. Then water was heated in birch bark containers by heating fist-sized rocks and placing them in the water to heat it. Then the very hot water was poured over the whole nuts, leaching out the tanic acid. After the nuts were dried, they were carried whole, to be ground into meal later or mixed with a variety of nutritional seeds and eaten like a bread cooked on a flat rock around the fire.

  • Carol Stockett

    I let the children in my library make acorn muffins when they studied Indians. We shelled the acorns and boiled them until the water was clear. It took
    several waters to leach – then we ground them with mortar and p. or in my food processor – have recipe. I also cooked and used cattails in several ways. It is a food factory…

  • Catherine

    I’ve seen recipes making sweet breads using only acorn flour, as well as using a nut milk bag for leaching out the tannins, sort of similar to making a nut milk. Thanks for the info and recipes 🙂 I’d recommend that if someone is into gluten-free that they could totally use ONLY acorn flour and a binder (such as eggs or flax/chia seed). Alternatively, for that yummy acorn griddle cake recipe, using 1/3 cup almond or nut flour flour would probably pair quite nicely with the acorn flour, as might teff flour, which has a particular nutty taste. 🙂

  • Lucy

    Thank you, Marjory, great article. I live in southern Spain right by the largest cork oak forest in Europe, the Quercus suber. Do you know if they can be used instead?

  • Scott

    I’ve always wondered about the acorns laying around on the ground in profusion in the fall here in Virginia. I’m sure getting the tanic acid out is of utmost importance as it might harm our health. But, the nuts have to be loaded with protein. Why a cedar branch? (Why not filter the water through rosemary? it is also an evergreen, edible and quite tasty.) I would assume that any warm water bath would leach out the tannins. I would want to make sure that my acorns were clear of any acid as i wouldn’t want to find out it was harmful the hard way.

  • joy

    An Asian neighbor once borrowed the use of my blender… almost wrecked it grinding up acorns (or so it sounded) then she soaked the grind for several days. At our New Years Eve party she brought over a plate of fudge shaped cubes that tasted strongly of garlic. We all ate them and no one died, but several people got the recipe. Unfortunately I was not one of them. They went well with all the sausage and cheese we served. Any idea what the recipe was?

  • d. henry Lee

    Boy! This seems like a lot of trouble. Why not let the squirrels eat the acorns and then eat the squirrel. Just kidding. But this process lost me.

  • Bert

    I’m slowly comely to the opinion that meats (meaning the dense muscle tissues) need to be cooked (and eaten) with adjoining fats, bones cut to expose marrow, and connective tissues. So, I’d add bones and fats to the recipe. Then, like Marjorie says, a long slow cook “until the meat almost falls apart.”

  • White Oak is easier to leach, but even red oak or the prolific water oak and laurel oaks in FL I have used. They both have deep orange acorns, lots of carotene I suppose, and can be leached by cracking in peices and several changes of water. A good way is to use the meal in pancakes when the meal is no longer bitter. Some chestnut oak acorns can be eaten out of hand.

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