01 -
Combine sliced red onion, sumac, and salt in a medium bowl. Gently massage the mixture by hand for 30 to 60 seconds until the onions begin to soften.
02 -
Incorporate red wine vinegar or lemon juice, olive oil, and chopped parsley. Mix thoroughly until the onions are evenly coated.
03 -
Cover and allow the onions to marinate for at least 20 minutes before serving for optimal flavour. Serve alongside mains or use as a vibrant topping for burgers, sandwiches, wraps, or salads.