I buy pecan meal. Very reasonable ($1.50 lb), at a local health foods store
that carries foods for Seventh Day Adventists. You could do it with a food
processor, starting with whole or broken pecans, but it would be more work
and a lot more expense. Pecan meal is a nice thickener for soups, now that
cornstarch, flour, potatoes, etc., are out. It doesn't make them smooth and
glossy, but it adds flavor and body.
From: Lynnet Bannion on the PaleoFood list. Posted 12 Feb 1999.