Laos Powder This page first published: Sep 21, 2010 · Updated: Jun 6, 2018 · by CooksInfo. Copyright © 2021 · This web site may contain affiliate links · This web site generates income via ads · Information on this site is copyrighted. Taking whole pages for your website is theft and will be DCMA'd. See re-use information. Laos Powder is a spice; it’s just ground Greater Galangal root. It is aromatic and peppery, tasting and smelling a bit like ginger and camphor together. It is added to spice rubs in Indonesia.