My favorite trails are littered with acorns from the recent big winds. This incredibly nutritious food has been feeding native people of our region for thousands of years and is used today by a wide spectrum of cultures. After reading this blog, I hope that you will feel inspired to cook up a recipe with this local wild edible, take a walk in your local parks and spend time taking in the beauty of nature… and perhaps join us to gather acorns at Big Oak Canyon.
Leaching out the Tannic Acid
An adult friend told me that she remembers hearing as a child that acorns were edible, so she cracked one open, popped it in her mouth and to this day remembers the awfully bitter taste before spitting it out. Our local Coast Live Oak acorns contain high levels of tannic acid that need to be washed out before consuming or they can make you feel sick.
One of my mentors, Jon Young tells a story of how he learned from his elders to leach the tannic acid out of acorns. First, crack the hard shells with a stone, save the inner acorn meat, and toss the hard shells. Put the acorn meat into a basket woven tight enough that the acorns would not fall through the holes, and loose enough that the water could flow through easily. He then set the basket in the creek where the current flowed strong enough that it would wash the acorns and gentle enough that once secured with stones, the basket would not be swept away. The basket of acorns was left in the creek overnight. The acorn pieces were checked in the morning, and if still tasted bitter, were set in the creek to be washed again. They were finished leaching when the nuts did not taste bitter.
In our classes, we use the same concept, but with a modern twist. Students remove the hard shells by first cracking them with a stone and separating out the inner acorn meat. They take out any acorn weevils (which are edible!), dark or moldy inner acorn meat and toss that aside, leaving only the lighter fresh smelling acorn meat for consumption. The acorns are then ground with a mortar and pestle until only small pieces remain. Keep in mind, the smaller the pieces, the faster the leaching process. Grinding acorns this way takes a lot of effort and is great for group activities.
When I’m leaching acorns at home, I fill a blender halfway with water, put the de-shelled acorns in the water and blend on high until the pieces are broken up. Some may call this cheating, but hey, it gets my family and I eating acorns! I then leach and strain as described below.
To wash out the tannic acid, we use a kitchen strainer with a cloth laid on top of it to hold the acorn pieces. We then rinse them under flowing tap water while stirring the acorn meal with our hands to make sure all pieces get washed. Another method is to put the acorn meal inside a nut milk bag instead of using the strainer/cloth. The nut milk bag works best for younger kids so that they don’t spill out any hard-earned acorn pieces while rinsing. Try both, see what works best for you!
You will notice that the first wash leaves the water looking milky. This is good! Repeat washing until the water comes out clear and the nut pieces do not taste bitter. This step could take up to 30 minutes or more of constant rinsing, stirring and squeezing. Don’t give up!
Once leached, the sky is the limit on how you use these delicious nuts. Jacque Nunez, a local Acjachemen educator teaches about Wi-wish. Wi-wish is a traditional dish of ground acorns, similar to porridge. I look forward to one day cooking it the old way, in a tightly woven basket filled with water and boiled with fire-heated stones.
Here’s what our classes are cooking:
Earthroots Acorn Pancakes
1 cup acorn meal or acorn flour
1 cup of your favorite flour (corn, amaranth, wheat, garbanzo bean, rice, etc)
1 tsp salt
2 tsp baking powder
2 eggs (vegan option: tsp flax meal + 2 tbsp water)
1/4 cup coconut oil or ghee
1/2 cup honey or maple syrup
2 cups water or any milk
1. Mix dry ingredients first.
2. Add wet ingredients and mix together thoroughly(Note: the secret to keeping pancake batter from getting lumpy is to be sure to add all the wet ingredients first, mix thoroughly, then add dry ingredients)
3. Adjust consistency by adding a little more water/milk or a little more flour if it’s too thick or thin. Pancake batter should be thin enough to pour, but not runny.
4. Cook on oiled grill.
5. Top with Maple Syrup or prickly pear jam
Benefits of Acorns
1. They store well – you can keep them all year long. Adding acorns to your diet makes “eating local” more successful since you will have a good storage of nuts to supplement the seasonal ebb and flow of your garden harvest.
2. Acorns are full of vitamins and minerals.
3. They are a great source of protein and complex carbohydrates.
4. They are 100% local.
– As with all wild-harvested plants, make sure you are harvesting out of harm’s way from pollution, runoff, and places where pesticides or other toxins are used.
– Select acorns with intact shells, no holes, and no mold. Holes are distinct signs that an acorn weevil has taken residency. If you find acorns with holes, crack one open and see what’s inside.
– Remember to harvest in appropriately designated areas (OC Parks and CA State parks while great places to explore nature are off-limits to gathering of any kind) and only take what you need. Leave the rest for the animals who depend on acorns as their food source.
Get to know acorn this season by joining us at Big Oak Canyon, Earthroots 39-acre property in Silverado Canyon where we teach ethical wild harvesting along with sustainable living and nature connection skills.