Sumac Onions Recipe
Introduction
Sumac onions are a vibrant and tangy side that adds a burst of flavor to any meal. These thinly sliced red onions are marinated with sumac, vinegar, and fresh parsley for a refreshing and versatile condiment.

Ingredients
- 1 large red onion, thinly sliced
- 2 teaspoons sumac
- 1/2 teaspoon salt
- 1 tablespoon red wine vinegar or lemon juice
- 1 tablespoon extra virgin olive oil
- 1 tablespoon fresh parsley, chopped
Instructions
- Step 1: Add the thinly sliced red onions, sumac, and salt to a medium bowl. Use your hands to gently massage the salt and sumac into the onions for about 30 to 60 seconds until the onions soften slightly.
- Step 2: Add the red wine vinegar (or lemon juice), extra virgin olive oil, and chopped parsley to the bowl. Mix everything together thoroughly, then cover and let marinate for at least 20 minutes before serving.
- Step 3: Serve the sumac onions as a side salad or versatile condiment. They work wonderfully on burgers, sandwiches, wraps, or mixed into salads.
Tips & Variations
- For a milder onion flavor, soak the sliced onions briefly in cold water before massaging with salt and sumac.
- Swap out red wine vinegar for lemon juice for a brighter citrus note.
- Add a pinch of chili flakes if you prefer a little heat in your sumac onions.
- Use fresh mint or cilantro instead of parsley for a different herbal twist.
Storage
Store the sumac onions in an airtight container in the refrigerator for up to four days. The flavors deepen over time, making them even more delicious the next day. Serve chilled or at room temperature. No reheating is needed.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
What is sumac and where can I find it?
Sumac is a tangy, lemony spice made from dried and ground berries of the sumac plant. It is commonly used in Middle Eastern cuisine and can be found in most grocery stores with a spice section or at specialty markets.
Can I make sumac onions ahead of time?
Yes, sumac onions improve in flavor after marinating for at least 20 minutes and can be prepared up to four days in advance when stored in the refrigerator.
PrintSumac Onions Recipe
Sumac Onions is a simple, tangy, and vibrant side salad or condiment made with thinly sliced red onions marinated in sumac, salt, red wine vinegar or lemon juice, olive oil, and fresh parsley. This quick recipe adds a burst of flavor and color to burgers, sandwiches, wraps, and salads, and can be prepared in just a few minutes with minimal ingredients.
- Prep Time: 10 minutes
- Cook Time: 0 minutes
- Total Time: 30 minutes
- Yield: 4 servings 1x
- Category: Side Dish
- Method: No-Cook
- Cuisine: Middle Eastern
- Diet: Vegan
Ingredients
Ingredients
- 1 large red onion, thinly sliced
- 2 teaspoons sumac
- 1/2 teaspoon salt
- 1 tablespoon red wine vinegar or lemon juice
- 1 tablespoon extra virgin olive oil
- 1 tablespoon fresh parsley, chopped
Instructions
- Massage Onions: Add the thinly sliced red onions, sumac, and salt to a medium bowl. Use your hands to gently massage the salt and sumac into the onions for about 30-60 seconds to soften the onions and infuse the flavors.
- Add Remaining Ingredients: Add the red wine vinegar or lemon juice, extra virgin olive oil, and chopped fresh parsley to the bowl. Mix everything together thoroughly to combine.
- Marinate: Cover the bowl and set aside to marinate for at least 20 minutes. This allows the flavors to meld and the onions to mellow. You can also store the mixture in an airtight container for up to four days.
- Serve: Serve the sumac onions as a simple side salad or as a flavorful condiment. They’re perfect to add to burgers, sandwiches, wraps, salads, or any dish that needs a zesty onion kick.
Notes
- Use either red wine vinegar or fresh lemon juice based on your preference or availability.
- Marinating longer enhances the onion flavor while softening their bite.
- Store in the refrigerator in an airtight container for up to 4 days.
- Sumac adds a unique tangy and slightly lemony flavor, but if unavailable, a small pinch of lemon zest can be a substitute.
- This recipe is naturally vegan and gluten free.
Keywords: sumac onions, Middle Eastern salad, tangy onions, onion condiment, vegan side dish, quick salad, sumac recipes

