Sumac Cherry red sumac is used extensively throughout the Middle East, especially in Turkey, Syria and Lebanon, either plain or mixed with thyme leaves and sesame seeds (Zatar) as a tabletop condiment. In the Mediterranean region today, sumac is used as a tabletop condiment or added during cooking to lend a pleasant, fruity sourness and soft cherry color to sauces, poultry, fish, and Turkish salads. The flavor is on the order of lemon juice or vinegar but milder and less acidic.
If you wish the lamb can be grilled on kebabs for easy handling, but it is not necessary.
Adapted From | Jamie Oliver