Sumac onions are a simple Turkish side dish that adds a fresh, tangy bite to so many meals. Made with thinly sliced red onions, parsley, and a sprinkle of sumac, this quick onion salad comes together in minutes but makes a big difference on the plate. It’s commonly served alongside kebabs, grilled meat, wraps, and mezze spreads, bringing a light and slightly citrusy flavor. The onions soften slightly as they sit to create a texture that works perfectly in sandwiches, flatbreads, or as a...