Sumac Onions With Parsley

Section: Fresh & Healthy Salads

Thinly sliced red onions are gently massaged with sumac and salt to bring out their flavor and soften their bite. A splash of red wine vinegar or lemon juice and extra virgin olive oil infuses the onions with bright, zippy notes, while fresh parsley adds herbal freshness. After marinating for twenty minutes, these vibrant onions become irresistibly tangy with a punchy aroma, perfect as a side salad or a lively addition to burgers, sandwiches, or wraps. They keep well in the fridge for several days, gaining even more flavor as they rest.

Savor by Sophie official logo
Created By Sophie
Updated on Wed, 04 Feb 2026 21:12:43 GMT
A bowl of food with onions and other vegetables. Save
A bowl of food with onions and other vegetables. | savorbysophie.com

These sumac onions deliver a hit of tang and freshness to any meal with almost no effort. I love scattering them over roasted chicken or stuffing them in pita wraps for a vibrant crunch and a burst of lemony flavor.

I first discovered sumac onions at a Mediterranean café and could not believe how transformative such a simple condiment could be. Now I always keep a jar on hand to elevate even the simplest weeknight meals.

Ingredients

  • Large red onion: Thinly sliced red onion gives a mild sweet bite and beautiful color. Look for firm heavy onions with tight skin and no signs of sprouting
  • Sumac: This deep red spice has a tangy citrus quality that adds a signature brightness. Buy sumac from a Middle Eastern grocery for the freshest flavor
  • Salt: Draws out moisture and softens the onions so the flavors marry. Kosher salt works best for even seasoning
  • Red wine vinegar or lemon juice: For acidity and extra brightness. Choose a good quality vinegar or fresh lemon for best results
  • Extra virgin olive oil: Adds richness and rounds out the sharpness. Use fruity olive oil for extra depth
  • Fresh parsley: Chopped parsley gives a fresh herbal note. Pick leaves that are bright green with no yellowing

Instructions

Prepare the onions:
Peel and thinly slice the red onion as thin as possible using a sharp knife or mandoline. Thinner slices absorb the flavors better and soften quickly
Massage with spice:
Place onion slices in a large bowl. Sprinkle over sumac and salt then use your hands to gently massage the mixture into the onions for at least thirty seconds until the onions start to wilt and their color brightens
Add dressing ingredients:
Pour in red wine vinegar or lemon juice and drizzle in olive oil. Add the chopped parsley
Mix and marinate:
Toss everything together so the onions are evenly coated. Cover the bowl and let the onions marinate for at least twenty minutes at room temperature. This allows the flavors to meld and the onions to soften. For deeper flavor let sit up to one hour
Serve or store:
Give the onions a good toss before serving. Drain off any extra liquid if needed. Enjoy as a salad side or as a topping for grilled meats falafel or your favorite sandwich. Leftovers can be stored in the fridge for up to four days
A bowl of onions with herbs.
A bowl of onions with herbs. | savorbysophie.com

My favorite way to enjoy sumac onions is sprinkled over a big platter of grilled kebabs at our family backyard parties. The pop of citrus and color always reminds me of summer gatherings and laughter around the table.

Storage Tips

Store any leftover sumac onions in an airtight glass container in the fridge. They will keep their brisk flavor for up to four days. Before using just drain off any liquid that has pooled at the bottom

Ingredient Substitutions

No red onions Try thinly sliced white or yellow onions though the flavor will be sharper. No parsley Swap in chopped fresh mint or cilantro for a different herbal note. Out of sumac Add a tiny sprinkle of lemon zest to mimic the citrus tang though nothing truly replaces sumac

Serving Suggestions

Pile generously on grilled burgers or halloumi wraps for a refreshing kick. Stir into salads with tomatoes cucumbers and feta for instant brightness. Use as a topping for roasted eggplant or rice bowls

Cultural and Historical Significance

Sumac is a staple in Middle Eastern kitchens and has been used for centuries to add acidity when citrus was scarce. It is common to find sumac onions as part of mezze spreads or as the finishing touch on shawarma and kebab sandwiches throughout the Levant region.

Seasonal Adaptations

Spring and summer are best for enjoying local sweet onions and garden herbs. In cooler months add sliced radish or carrot for extra crunch. If you get especially sharp onions soak slices in cold water for five minutes then drain before massaging with sumac

Success Stories

A friend texted me after serving these at a picnic and said her guests finished the onions before the main course. That is the power of a good condiment and how easy it is to switch up your family’s favorites.

Freezer Meal Conversion

While sumac onions lose some of their crunch when frozen you can still prepare a large batch and freeze in small portions for up to one month. Thaw overnight in the refrigerator then refresh with a dash of fresh vinegar and parsley before serving.

A bowl of onions and herbs.
A bowl of onions and herbs. | savorbysophie.com

Sumac onions are an effortless way to brighten any meal. Make a batch and see how quickly they disappear from your table!

Common Recipe Questions

→ What does sumac add to onions?

Sumac gives the onions a tangy, citrusy flavor and a beautiful reddish-purple color, elevating their taste and appearance.

→ How long should the onions marinate?

Let the onions marinate for at least 20 minutes to encourage tenderness and allow the flavors to meld together fully.

→ What can I use instead of red onion?

You can substitute white or yellow onions. Expect a less sweet flavor, so consider adding a pinch of sugar to balance.

→ How long do marinated onions keep?

Store in an airtight container in the refrigerator for up to four days; flavors will deepen as they sit.

→ Can I swap parsley for other herbs?

Yes, you can replace parsley with mint or cilantro for different herbal notes and a unique twist.

Sumac Onions Fresh Salad

Vibrant onions with sumac, herbs, oil and vinegar—a quick, tangy side or flavor-packed garnish.

Preparation Time
10 mins
Time to Cook
~
Overall Time
10 mins
Created By: Sophie

Recipe Type: Salads

Level of Expertise: Great for Beginners

Cuisine Style: Middle Eastern

Makes: Serves 4 as a condiment or side

Dietary Needs: Lower in Carbs, Completely Vegan, Plant-Based, No Gluten, Without Dairy

Ingredients You’ll Need

→ Vegetables

01 1 large red onion, thinly sliced

→ Seasoning

02 2 teaspoons sumac
03 1/2 teaspoon fine salt

→ Dressing

04 1 tablespoon red wine vinegar or lemon juice
05 1 tablespoon extra virgin olive oil

→ Herbs

06 1 tablespoon fresh parsley, finely chopped

How to Make It

Step 01

Place thinly sliced red onion in a medium bowl. Sprinkle sumac and salt over the onions and gently massage with your hands for 30 to 60 seconds until the onions begin to soften.

Step 02

Pour red wine vinegar or lemon juice and olive oil over the onions. Add chopped fresh parsley. Mix thoroughly to combine the ingredients evenly.

Step 03

Cover the bowl and set aside to marinate for at least 20 minutes at room temperature to allow the flavors to develop.

Step 04

Stir the onions before serving. Drain off any excess liquid if needed. Serve as a salad, side, or condiment. Store leftovers in an airtight container for up to 4 days.

Extra Tips

  1. The onions will soften further as they marinate; drain excess liquid before serving.
  2. Replace parsley with fresh mint or cilantro for a different flavor profile.
  3. White or yellow onions may be substituted for red onion, adjusting flavor balance if desired.
  4. Red wine vinegar intensifies the onion’s pink hue, but lemon juice offers a fresher note.

Recommended Tools

  • Medium mixing bowl
  • Sharp knife
  • Cutting board

Nutritional Info (Per Serving)

These nutrition details are for informational purposes only and shouldn’t replace professional dietary guidance.
  • Calories: 42
  • Fat: 3.3 g
  • Carbs: 5 g
  • Protein: 0.5 g