Sumac onions are both salad and condiment! The quick mix of red onions and seasonings stands alone as a flavorful side dish and adds zing added to salads and sandwiches or wraps.
Peel and slice the onion in thin half-moons. If desired, soak in a bowl of cold water for 10 minutes.
Place the onions in a medium bowl. Top with sumac, olive oil, lemon juice, salt, and pepper. Use your hands to coat the onions thoroughly. Set the salad aside for 10 minutes to marinate before serving.
Finely chop the mint and dust over the onions before serving.