Quick Answer
Yes, you can make acorn butter from leached acorn flour, but it may not be as rich and creamy as traditional acorn butter made from raw, ground acorns.
Leaching Acorn Flour
To leach acorn flour, mix 1 cup of acorn flour with 4 cups of water in a large bowl. Stir well, cover the bowl with cheesecloth or a fine-mesh sieve, and let it sit for 8-12 hours in the refrigerator. This process, called leaching, removes tannins and other bitter compounds from the acorn flour, making it more palatable.
Making Acorn Butter from Leached Acorn Flour
To make acorn butter from leached acorn flour, combine 1 cup of leached acorn flour with 1/2 cup of neutral-tasting oil, such as canola or grapeseed oil, in a blender or food processor. Blend on high speed for 2-3 minutes, stopping occasionally to scrape down the sides of the blender. Continue blending until the mixture is smooth, creamy, and almost doubled in volume. This may take 5-10 minutes, depending on the power of your blender.
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