Halved Olives This page first published: Aug 6, 2004 · Updated: Jun 9, 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. Olives that are pitted, then sliced into two roughly equal halves. You can do this manually at home. Ones that you buy in stores have been all done by machines.