The fruits (drupes) of Rhus coriaria are ground into a reddish-purple powder used as a spice in Middle Eastern cuisine to add a tart, lemony taste to salads or meat. In Arab cuisine, it is used as a garnish on meze dishes such as hummus and tashi, and is added to Falafel in Syria as well as being one of the main ingredients of Kubah Sumakieh in Aleppo of Syria, and is added to salads in the Levant, as well as being one of the main ingredients in the Palestinian dish, musakhan. In Afghan, Armenian, Bangladeshi, Indian, Iranian, Mizrahi, and Pakistani cuisines, sumac is added to rice or kebab. In Azerbaijani, Central Asian, Syrian, Jordanian, Lebanese and Turkish cuisines, it is added to salads, kebab and lahmajoun. Rhus coriaria is used in the spice mixture za'atar.
In North America, the smooth sumac (R. glabra) and the staghorn sumac (R. typhina) are sometimes used to make a beverage termed "sumac-ade", "Indian lemonade", or "rhus juice". This drink is made by soaking the drupes in cool water, rubbing them to extract the essence, straining the liquid through a cotton cloth, and sweetening it.