A dispensing package is provided that includes a liquid container and a drainback spout fitment fitted within a dispensing opening in a finish at the upper end thereof. A measuring cup is threadedly engageable with the fitment and finish to enable closing off of the container. The fitment includes a frustoconical downwardly depending side wall surrounding and spaced from the spout. A drainback channel between the spout and side wall drains back drips to a drain opening and thence into the liquid container. An interlock and centering means is provided between the finish and fitment to center the fitment with respect to the finish to assist the sealing system in preventing leaks as well as to prevent rotation of the fitment when the cup is rotated out of engagement for removal.