Hi Bill - you can buy “almond flour” in the health food store or health food section of the grocery store. You can do it yourself in a food processor too, but you’ll never get them to grind as fine as the ones you can buy, and you have to be very careful not to over heat the almonds… if they start to realease their oils, your mix will turn to almond butter. Some report adding a little flour to the almonds as they grind works well to absorb any oil that might be released. Keep your almonds cold too, pulsing instead of processing constantly. I might be beneficial to put the almonds in the fridge to chill between grindings too.