Essential Spice Ground Sumac comes from the berry of a shrub found in the Middle East and Mediterranean. It’s used extensively in Turkish, Iranian, and Moroccan food. The aroma of sumac seasoning is reminiscent of feral raspberries, lemons, and Indian summers. Sumac’s main quality is not it’s mild lemony flavor, but its intense sour taste. Herein lies sumacs main use as a balancer of the tastes. Wonderful in marinades and rubs.