Sumac Onions
These Sumac Onions are one of those little recipes that can completely transform a meal. Thinly sliced red onions are tossed with tangy sumac, fresh lemon juice, parsley, and a touch of salt to create a crisp, zesty topping with just the right amount of bite.
I first made these when I wanted something fresh to serve alongside grilled meat. I had some red onions sitting in the kitchen and a jar of sumac in the cupboard, so I decided to try the combination I’d seen used in Mediterranean and Middle Eastern dishes.
After a few minutes of mixing and gently rubbing the onions together, they softened just enough while keeping their crunch. The lemon and sumac gave them such a bright, tangy flavour that my family started putting them on everything.
Now, whenever I’m making grilled chicken, kebabs, burgers, or even a simple salad, I love having a bowl of these nearby.
Prep Time: 10 minutes
Resting Time: 15–20 minutes
Total Time: 30 minutes
Servings: 4
Why You’ll Love These Sumac Onions
- Takes just minutes to prepare
- Crisp and refreshing
- Tangy and slightly fruity
- No cooking required
- Perfect for Mediterranean meals
- Great for meal prep
- Makes simple dishes taste special
Ingredients
- 1 large red onion, very thinly sliced
- 1½ tablespoons ground sumac
- 2 tablespoons fresh lemon juice
- ½ teaspoon salt
- 2 tablespoons fresh parsley, finely chopped
- 1 tablespoon extra virgin olive oil, optional
Instructions
Step 1: Slice the Onion
Peel the red onion and slice it as thinly as possible.
Thin slices are important because they soften more quickly and absorb the sumac and lemon flavour.
Step 2: Add the Sumac
Place the sliced onions in a bowl.
Add the sumac and salt.
Using clean hands, gently massage the onions for about 1–2 minutes.
You’ll notice the onions becoming softer and slightly more vibrant in colour.
Step 3: Add Lemon and Herbs
Add the lemon juice and chopped parsley.
Drizzle in the olive oil if using.
Toss everything together until evenly coated.
Step 4: Let Them Rest
Allow the onions to sit for 15–20 minutes before serving.
This gives the sumac and lemon time to soak into the onions.
Taste and add a little more sumac, lemon, or salt if needed.
Expert Tips
Slice Them Very Thin
A sharp knife or mandoline makes this much easier.
Massage the Onions
Don’t skip this step. Gently rubbing the onions with sumac and salt softens their sharp raw flavour.
Let Them Rest
They taste noticeably better after sitting for a little while.
Adjust the Tanginess
Sumac can vary in intensity. Start with the recommended amount and add more to taste.
Delicious Variations
Sumac Onion and Parsley Salad
Add extra parsley and a little chopped tomato for a simple salad.
Sumac Onions with Pomegranate
Add a few pomegranate seeds for sweetness and colour.
Spicy Sumac Onions
Add thinly sliced fresh chilli or a pinch of red pepper flakes.
Sumac Onion Cucumber Salad
Mix with sliced cucumber and fresh mint for a refreshing side.
Creamy Sumac Onions
Serve the onions over thick Greek yogurt for a simple mezze-style dish.
What to Serve with Sumac Onions
These onions are delicious with:
- Chicken shawarma
- Grilled chicken
- Lamb kebabs
- Beef kebabs
- Kofta
- Falafel
- Hummus
- Grilled fish
- Burgers
- Pita wraps
- Rice bowls
- Mediterranean salads
They’re also wonderful scattered over grilled meats straight from the barbecue.
Storage Instructions
Store the sumac onions in an airtight container in the refrigerator.
They are best enjoyed within 2–3 days.
The onions will become softer and more deeply flavoured as they sit.
Nutritional Information
Approximate per serving:
- Calories: 45
- Protein: 1g
- Fat: 1g
- Total Carbohydrates: 9g
- Fibre: 2g
Nutrition values are estimates and will vary depending on the ingredients and serving size.
Frequently Asked Questions
What is sumac?
Sumac is a deep red spice made from dried and ground sumac berries. It has a pleasantly tangy, lemon-like flavour and is commonly used in Middle Eastern and Mediterranean cooking.
Can I make sumac onions without lemon?
Yes. Sumac already provides plenty of tanginess, so you can omit the lemon if you prefer a milder flavour.
Can I use white onions?
Yes, although red onions are traditionally preferred because of their colour and slightly sweeter flavour.
How can I make raw onions less sharp?
Massaging them with salt and sumac helps soften their texture and flavour. You can also soak them briefly in cold water before draining and seasoning.
Can I make these ahead of time?
Absolutely. They can be prepared several hours ahead and refrigerated until you’re ready to serve.
Final Thoughts
These Sumac Onions are proof that sometimes the simplest recipes are the ones you end up making over and over. They’re crunchy, tangy, fresh, and incredibly versatile.
I especially love them piled over warm grilled chicken or tucked into a wrap with hummus and fresh herbs. That little burst of sumac and lemon can turn an ordinary meal into something that tastes restaurant-worthy.
Once you have a jar of sumac in your pantry, these onions are definitely worth trying. 🧅🍋🌿