CHICAGO, Illinois, September 28, 2026 — More and more cooks see food where most of us saw litter: Oak trees are shedding their autumn produce. For thousands of years, acorns were an integral food source for Indigenous people all over North America. The nut is now tested out and being used in flour, pancakes, gnocchi and more by chefs as well as plant researchers.
A Food With Deep Roots
Forty thousand years ago, acorns were an important source of starch and fat for many Indigenous peoples throughout the Americas. A neglected food: in 1918, zoologist C. Hart Merriam argued for acorns. For many Americans in the next few decades, it would be over.
Since time immemorial, farm animals, and especially in Europe pigs, have eaten acorns. Foraging, local ingredients and gluten-free cooking have put the nut back in conversation. Most varieties of oaks grow throughout the country, which places supply not far from home.
Native cooks and youth programs have brought acorn foods back. An Oakland chef worked with native youth to create acorn bites mixed with pine nuts and dried cherries for the Kickapoo Mission. The bites were deemed delicious by senior tasters, and the project continues from the beginning of a tribal food sovereignty assessment initiated in 2016.
From Bitter Nut to Fine Flour
Tannins, which are toxic and taste bitter, are present in raw acorns and can upset the stomach. Cooks take them out by shelling, grinding and washing the meal with water until the bitterness disappears. As a result, you get a light and nutty flour that is suitable for breads, batters and porridge.
Acorn flour is gluten-free, which has raised it to the attention of folks searching for alternatives to wheat. Forager Jolie Lonner Egert says it absorbs the flavors of other ingredients (much like a mild grain). She has recipes for biscuits, pancakes and porridge on her Go Wild Institute site.
Ecologists also note that much of the forest is already sustained by acorns. In California, oaks with big acorns high in fat and other nutrients may be the most important genus for wildlife, according to a U.S. Forest Service plant ecologist. Leave much for the animals that rely on the harvest.
Chefs Take Notice
Acorn flour was incorporated by chefs to make gnocchi, tart shells, crackers and griddle cakes. “I have tried acorn flour in tart shells and crackers,” says Sean Sherman, a Sioux chef. Momofuku’s David Chang has gone as far as to use it for gnocchi.
In 2014, a Texas company called Mighty Wild started producing gluten-free acorn goods. Founded by two relatives who recognized the opening in the booming market for wild and native foods. Another program in western North Carolina is uniting chefs and food artisans to cook with acorns, black walnuts and hickory nuts.
The nut, Egert says, invites Americans to question what sustains them. Acorn harvesting and milling are part of her local food economy’s vision. It is a tradition they feel should be honored and a practical application for an abundant crop, supporters say.
Hurdles for the Home Cook
Price is one hurdle for cooks looking to sample the ingredient. A grower learned that flour priced at $25 per pound far exceeded the willingness to pay of most shoppers at a farmers market. So, he pivoted to restaurants, where chefs were thinking outside the box with lower-fat alternatives.
And processing can take months—yields depend on both the oak and the season. An email from a forager says she can gather 25 pounds or more in less than an hour, though shelling and leaching take longer; for starters, beginners can go for a small batch to get acquainted with the procedure.
From more specialized producers, acorn flour is available for purchase online, but supply remains slight. In parks and yards where local rules permit, amateur chefs can forage acorns among oaks. Basically, if a nut has tiny holes in it, it’s full of bugs and it must be thrown away.
