Clean off 'silver skin' from pork tenderloin. (This is optional, but recommended to keep it lean)
In a bowl, whisk together olive oil + spices. Marinate pork in olive oil + spices overnight if possible in a ziploc bag, otherwise place tenderloins in crockpot and cover with oil/spice marinade. Make sure all areas of the pork have some marinade on them.
Pour chicken stock on top of marinated tenderloins.