sumak

Sumac (Rhus coriaria) is a flowering shrub native to the Levant and Mediterranean regions, whose dried berries are ground into a deep burgundy-purple powder used as a culinary spice. The plant produces small, slightly fuzzy drupe fruits that grow in dense clusters (drupes); when ripe, they possess a deep crimson color and are harvested, dried, and pulverized to create the spice. The powder has a tart, lemony flavor with subtle fruity and floral notes, containing citric acid that imparts its characteristic tangy taste without the acidity of lemon juice. True culinary sumac (particularly the Syrian variety) should be distinguished from ornamental sumac species and the toxic poison sumac (Toxicodendron vernix), which is a different genus entirely.

The spice varies by cultivar and origin—Persian, Lebanese, and Turkish sumacs are prized for their complex flavor profiles and superior quality. Sumac berries are harvested in late summer to early autumn when fully ripe but before rain (which would diminish the acidic bloom on the fruit's surface).

Sumac functions as a souring agent and flavor enhancer across Levantine, Persian, Turkish, and broader Middle Eastern cuisines, offering acidity without liquid. It is essential to za'atar spice blends and dukkah, and is generously applied as a finishing powder on hummus, grilled meats, fresh salads, and roasted vegetables. In Persian cuisine, it appears in rice dishes (zereshk polo), stews, and fish preparations. The spice pairs particularly well with grilled lamb, chicken, and seafood, and complements legumes and grain-based dishes. Sumac's tartness brightens fatty foods and rich preparations, making it invaluable for balance in Mediterranean and Middle Eastern cooking. It should be added late in cooking or as a garnish to preserve its flavor and vibrant color.