I've done this but it's quite a bit of effort. After removing their shells, grind the acorns into a flour, then cover with water. Each day for a week, drain

I've done this but it's quite a bit of effort. After removing their shells, grind the acorns into a flour, then cover with water. Each day for a week, drain off the water and add fresh water. At the end of the week, the water should be clear. Dry the acorn flour in the sun. You can use the flour to make dotorimuk (acorn jelly): add to water, boil until it thickens, pour into dish, let it cool.