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The 5-minute flavour booster that turns any meal into something you actually want to eat – no cooking, no fuss!

You know that moment when dinner feels like it needs … something? Not another side dish, not more sauce – just a pop of flavour to lift the whole plate. That’s exactly what these lightly pickled Sumac Onions do.

Completed dish of tangy sumac onions ready to serve
Zingy, crunchy and full of citrusy punch – these lightly pickled onions instantly lift everything from wraps to leftover rice bowls.

They take 5 minutes, require zero cooking, and instantly add sharpness, crunch and brightness to just about anything – wraps, rice bowls, grilled meats, falafel, you name it. If you’ve ever had a kebab with those tangy red onions inside and thought, “I wish I could make this at home?” – now you can!

The sumac – available at major supermarkets in the spice aisle – brings a tart, citrusy punch, the lemon juice softens the onions just enough, and the whole thing sits in your fridge like a secret weapon for next-level dinners. The onions are make-ahead friendly, budget-friendly and kid-adaptable (just rinse or soak the onions first for milder flavour). Basically, this is one of those tiny extras that makes everything taste better – and once you start making it, you’ll wonder how your fridge ever lived without it.

What is sumac, and where do I find it?

Sumac is a deep red Middle Eastern spice with a tangy, lemony flavour. It is not a hot spice, so very kid-friendly, and it isn’t expensive. You’ll find it in the spice aisle of major supermarkets or Middle Eastern grocers – it’s worth keeping on hand.

Can I use white or brown onions instead?

Red onions work best here for colour and sweetness, but if you’re in a pinch, you can use white – just soak them in the lemon juice a bit longer to soften their bite.

Flat lay of ingredients for sumac onions: sliced red onion, lemon, sumac, olive oil, and salt"
Just five ingredients – red onion, lemon, sumac, olive oil and salt. Nothing fancy, just fridge-boosting flavour.

What can I serve them with?

Everything from kebabs and grilled meats to sandwiches, bowls, falafel or tacos … I even love them with cevapi! They also bring serious life to leftovers.

Recipes that are delicious served with Sumac Onions:

Juicy Oven-baked Kebabs Recipe
Chicken Shawarma with Garlic Yoghurt Sauce Recipe
Halloumi Flatbreads with Hot Honey Recipe
Lamb Kofta with Fattoush Salad and Hummus Recipe
Lemon, Oregano and Chicken Tzatziki Wrap Recipe

Completed dish of tangy sumac onions ready to serve

Sumac Onions

Author: Nicole
5 from 1 vote
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These tangy, zippy Sumac Onions are a 5-minute flavour upgrade you’ll use again and again. No cooking required, just a quick mix of pantry staples that instantly elevates wraps, bowls and salads. A simple, make-ahead side that actually makes dinner exciting.
Prep 5 minutes
Total 5 minutes
Servings: 6

Ingredients

  • 1 small red onion, very finely sliced (see note 1)
  • 1½ tsp sumac
  • ½ lemon, juiced
  • 1 tsp olive oil
  • ¼ tsp sea salt flakes

Instructions

  • Place all the ingredients in a small bowl.
  • Toss to coat and let sit for 5–10 minutes (or longer) to pickle before serving for a better flavour, or serve immediately!

Nutrition information

Nutrition Facts
Sumac Onions
Amount per Serving
Calories
16
% Daily Value*
Fat
 
1
g
2
%
Saturated Fat
 
0.1
g
1
%
Polyunsaturated Fat
 
0.1
g
Monounsaturated Fat
 
0.5
g
Sodium
 
99
mg
4
%
Potassium
 
39
mg
1
%
Carbohydrates
 
3
g
1
%
Fiber
 
1
g
4
%
Sugar
 
1
g
1
%
Protein
 
0.3
g
1
%
Vitamin A
 
2
IU
0
%
Vitamin C
 
6
mg
7
%
Calcium
 
7
mg
1
%
Iron
 
0.1
mg
1
%
* Percent Daily Values are based on a 2000 calorie diet.

Disclaimer re gluten-free and dairy-free recipes

Recipe notes

Note 1 – For milder flavour, soak the sliced onion in cold water for 10 minutes before mixing. If your onion is extra large, you can double the lemon juice and sumac.

Make Ahead

Mix and store in the fridge in an airtight container for up to 3 days. The flavour intensifies and the onion softens over time. Avoid metal bowls – glass or ceramic helps preserve the fresh flavour.

Leftovers

See make ahead instructions above.

Tried this recipe?

Let us know how it was!
Course Sides
Cuisine Middle Eastern-inspired