Marinated Sumac Onions Recipe (2024)

Published: Updated: by Hilda Sterner | This post may contain affiliate links 14 Comments

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Have you ever tried Sumac Onions? This "Red Onion Salad" features thinly sliced red onions, chopped Italian parsley, and a zesty sumac-based marinade that will delight onion-lovers everywhere! Serve Sumac Onions with Kebabs, Falafel, or mix into salads.

Marinated Sumac Onions Recipe (1)

Why This Recipe Works

Sometimes referred to as Sumac Onion Salad or Turkish onion Salad this recipe allows you to quick pickle raw onions and to use them inShawarmawraps,Adobada Tacos, in salads, and as a side dish to other Mediterranean recipes.

The best part is that you probably have all the ingredients on hand, maybe with the exception ofsumac powder. Sumac has a tart, lemony flavour and also releases a beautiful red tint when added to a dressing or other liquids.

Sumac powderis a regular in many of my recipes. If you follow my blog, you might as well get some, you'll be needing it often!

What Goes Into This Recipe

Marinated Sumac Onions Recipe (2)

Ingredient Notes and Substitutions

  • SumacThe ingredient that makes this recipe shine is the tart Sumac Powder. Sumac gives the onions their amazing flavor.
  • OnionThere are recipes out there that call for white or yellow onion, but I recommend using red onion because of its natural sweetness. It just begs to be pickled!

How to Make Sumac Onions

STEP 1: Peel and slice the red onion into thin slices. Add onion slices to a bowl, along with the chopped parsley.

Marinated Sumac Onions Recipe (3)
Marinated Sumac Onions Recipe (4)
Marinated Sumac Onions Recipe (5)

STEP 2: Whisk lemon juice, vinegar, olive oil, sumac, salt, and sugar in a small bowl.

Marinated Sumac Onions Recipe (6)
Marinated Sumac Onions Recipe (7)

STEP 3: Pour the sumac dressing over the onions and parsley, then whisk thoroughly to blend the ingredients.

Marinated Sumac Onions Recipe (8)

STEP 4: Allow the flavors to come together for an hour or so before using it as a condiment with kofta kabob, chicken, in sandwiches, or mixed in salads!

Recipe FAQs and Expert Tips

What does sumac taste like?

Sumac imparts a tart, lemony flavor that's sometimes compared to lemon or lime zest. Sumac powder is very popular in the Middle East and is used in all kinds of dishes.

However, this delicious spice is perhaps best known for accompanying grilled kabobs. It is also mixed into salad dressings, for example, Fattoush salad.

Some creative people even use it in desserts like this Blueberry Sumac Sherbert.

What can I use instead of sumac?

I understand that not everyone's spice drawer contains sumac, but I'd like to change that, one kitchen at a time! Although in some recipes, it can be substituted with another tart ingredient like lemon zest, or a pinch of citric acid, I don't recommend it in this recipe.

I mean, c'mon, Sumac is a part of the recipe's name, it wouldn't make sense to substitute another ingredient, would it?

Although I usually offer all sorts of alternatives to ingredients, I'm drawing a line in the sand this time. Get yourself some sumac!

Marinated Sumac Onions Recipe (9)

Do you have to use red onions to make sumac onions?

Unlike my stance on the sumac powder, I'm more flexible when it comes to replacing the red onions with white onions. However, I wouldn't recommend using yellow onions, which tend to have a very strong, almost harsh taste.

Some Sumac Onions recipes call for soaking the sliced onion in hot water for 5-10 minutes before proceeding with the recipe. This is to mellow out the onion flavor. This might not be a bad idea if using yellow onions since they taste stronger than red onions.

After soaking the sliced onion in hot water, lightly squeeze, to release some of their juices before proceeding with the recipe.

However, if you use red onions, you can skip soaking them first. Besides, I think the marinade does a nice job of bringing out the sweetness of the onions.

  • Sumac loses its flavor if it's stored for any length of time. It's a good idea to keep sumac frozen until needed to retain its freshness. Especially if you don't use it too often.
  • If you want to spice things up a bit, you can add some chili flakes in with the marinated onions.
  • Sumac onions are good for up to a week or longer.
  • Use leftover Sumac Onions in salads, mix into rice, stirfry, and more!
Marinated Sumac Onions Recipe (10)
  • Barbecued Sumac Chicken
  • Pink Onions Pickled in Beet Juice
  • Goat Kofta Kabob (kebab) Recipe
  • The Best Sumac Substitute Option

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📖 Recipe

Marinated Sumac Onions Recipe (15)

Marinated Sumac Onions

Marinated Sumac Onions are served as a condiment with grilled meat, Kabobs, chicken, and more!

5 from 12 votes

Print Pin Rate

Course: Condiments

Cuisine: Middle Eastern

Prep Time: 5 minutes minutes

Total Time: 5 minutes minutes

Servings: 6 servings

Calories: 57kcal

Author: Hilda Sterner

Ingredients

  • 1 large red onions
  • 2 tablespoon Italian Parsley (chopped)
  • 2 tablespoon fresh lemon juice
  • 2 tablespoon red wine vinegar
  • 2 tablespoon olive oil
  • 4 teaspoon sumac
  • ½ teaspoon sea salt
  • ½ teaspoon sugar

Instructions

  • Start by peeling and slicing the red onion. Add to a bowl, along with the chopped parsley.

  • Whisk lemon juice, vinegar, olive oil, sumac, salt, and sugar in a small bowl.

  • Pour the dressing over the onions and parsley, then mix thoroughly to combine.

  • Allow the flavors to come together for an hour or so before using it as a condiment withkofta kabob, chicken, in sandwiches, or mixed insalads!

Notes

  • Sumac loses its flavor if it's stored for any length of time. It's a good idea to keep sumac frozen until needed to retain its freshness. Especially if you don't use it too often.
  • If you want to spice things up a bit, you can add some chili flakes in with the marinated onions.
  • Sumac onions are good for up to a week or longer.
  • Use leftover Sumac Onions in salads, mix into rice, stirfry, and more!

Nutrition

Serving: 1serving | Calories: 57kcal | Carbohydrates: 3g | Protein: 0g | Fat: 5g | Saturated Fat: 1g | Cholesterol: 0mg | Sodium: 334mg | Fiber: 1g | Sugar: 1g

Tried this Recipe? Please leave A Star Rating!Mention @HildasKitchenBlog or tag #HildasKitchenBlog!

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Reader Interactions

Comments

    Leave a Reply

  1. Patty says

    Marinated Sumac Onions Recipe (16)
    Loved them. Will make again!

    Reply

    • Hilda Sterner says

      Thanks, Patty!

      Reply

  2. Megan says

    Marinated Sumac Onions Recipe (17)
    So I love sumac onions and was jazzed to find this recipe! I didn't get everything out of the cabinets first and to my surprise I poured out and poured in 1tablespoon of balsamic vinegar (I buy the same bottle brand red wine vinegar and considering changing that now). I finished with the rest of the red wine vinegar and omitted the sugar in the place of balsamic and by golly it was good! Only (unintentional) change and loved it. Probably good for those easing I to the taste the more I think of it. I've made a proper batch too and over the moon with the recipe - thank you so much !!

    Reply

    • Hilda Sterner says

      Hi Megan,
      Thank you so much for your review and your great suggestion. I will have to give that a try when I make my next batch. Thanks for sharing the information with my readers too!

      Reply

  3. Richard says

    I just bought a jar of sumac, how can I tell if it's still good? It's not as tart as I thought it would be, with a kind of earthy taste. Does that sound right?

    Reply

    • Hilda Sterner says

      It does have an earthy flavor, so that sounds right. If it's no longer good it will have an unpleasant aroma.

      Reply

  4. Faythe says

    Marinated Sumac Onions Recipe (18)
    I will try this recipe with grilled lamb chops! I love sumac, red onions and fresh parsley so this recipe will definitely fit into my autoimmune/leaky gut diet cookbook. I will also try adding cucumbers.
    Thank you

    Reply

    • Hilda Sterner says

      Hi, Faythe, I bet it will be amazing with lamb chops!

      Reply

  5. Suzy says

    Marinated Sumac Onions Recipe (19)
    This is absolutely delicious. I have used red onions and also shallots and can't get enough of it! Thank you!

    Reply

    • Hilda Sterner says

      Thank you, Suzy! I'm so glad you like them as much as I do!

      Reply

  6. Emilee says

    Marinated Sumac Onions Recipe (20)
    We absolutely loved this recipe. We used these stop meatloaf sandwiches to bring a little excitement to an ordinary weeknight meal. I can imagine a thousand ways to use this recipe. Thanks!

    Reply

    • Hilda Sterner says

      Hi Emilee,
      Thank you so much for the review. I agree, there are so many ways to use marinated sumac onions. I love your idea of including them in a sandwich, yum!

      Reply

  7. Kelly Methey says

    This is an interesting sounding recipe. I love onions so I will be trying it, if I can find sumac powder. The only sumac I ever knew of was poison sumac as a kid growing up! Hahaha

    Reply

    • HildaSterner says

      I'll give you some if you don't want to buy it.;)

      Reply

Marinated Sumac Onions Recipe (2024)

FAQs

How to sweeten onions for salad? ›

You can get rid of the strong taste by soaking sliced onions in ice water for 20 to 30 minutes or by sprinkling them with an acid such as vinegar. Onions soaked in ice water will get very crisp while those sprinkled with vinegar will soften a bit, but they will lose the strong taste and become sweeter.

How do you make red onions not so strong? ›

Submerge Them in Cold Water

Soak them for at least 15 minutes (longer is even more beneficial), properly drain, and eat away! Submerging them in cold water takes away that intense, sharp bite from the raw onion. The cold water helps the enzyme that causes onions to have their pungent flavor to leach out.

How to prep red onion for salad? ›

Just peel and slice the red onion as called for in your recipe, then submerge them in a bowl of cold or ice water. Let them sit for at least ten minutes, stirring once or twice, before draining and using them in your recipe. For added flavor, you can also soak the onions in lime juice, lemon juice, or vinegar.

What is the best way to make onions taste sweeter? ›

Cook them slowly to caramelize them, or saute them until translucent, then add liquid to the pan, or roast them in the oven until the just begin to char, which brings out their sweetness. You can braise them in chicken stock. That's delicious. You can even use them to make ketchup.

What does soaking onions in salt water do? ›

Wait 10 minutes, then serve. The salt softens the onion's fibrous texture and mellows the sharpness of their flavor. There are other ways to tame raw onion, of course. You could soak slices in lemon juice for 20 minutes, which lends a slightly pickled flavor, as in this Tomato and Herb Salad with Sumac.

What happens if you soak red onions? ›

The pungency and sharpness of raw onion may be reduced, making them taste milder. - Color: Red onions contain pigments called anthocyanins, which give them their vibrant red color. When soaked in water, the anthocyanins can leach out into the water, resulting in slightly faded onion slices and a tinted water.

Can you put raw red onion in a salad? ›

Sure, you can totally put raw onions in a salad without cooking them. Raw onions give a strong and tangy taste to salads, making them more interesting. But, be aware that raw onions can be really strong, and some people might not like that.

How long to soak onions for salad? ›

Onions - soaking in cold water to soften the flavor

When preparing raw onions, soak in cold water before hand to remove some of the pungency and soften the flavor. However since soaking too long will dilute the flavor, soaking in cold water for 5 to 10 minutes is recommended. Squeeze out excess water before using.

What is the best onion for salad? ›

Red Onions: The salad onion. While you can cook with it, it's less overpowering than white or yellow onions, making it ideal for uses that require raw onion. The colour fades as you cook them. Great for Greek salad, on burgers, etc.

How do you make raw onions sweeter? ›

Soak Them in Ice Water

Just leave the onions in the water for ten or so minutes, and you'll have remarkably less intense onions. You can also soak them in vinegar or citrus juice to add a new flavor to the onions.

Should I add sugar to my onions? ›

You'll see some people add sugar to the recipe, which is done to speed it up. Doing this is caramelising the sugar, not the onion. The onions get plenty sweet enough on their own if you take your time with it. From a health perspective it's much better not to add extra sugar.

How do you calm down the flavor of onions? ›

Adding a touch of acidity, such as lemon juice or a splash of vinegar, can help cut through the richness of the onions. Additionally, adding sweeter ingredients like carrots, bell peppers, or even a pinch of sugar can help counterbalance the strong taste.

What does adding sugar to onions do? ›

It seems to make sense that you should add sugar to caramelized onions. Caramel is in the name! And adding sugar will make your onions sweeter. So if sweetness is what you're going for, do it my friends!

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