Tamil (Sri Lankan usage): Commonly referred to simply as "Sambal"
Sinhala: සීනි සම්බෝල (Seeni Sambol)

Category: Condiment • Side Dish • Heritage Recipe
Cuisine: Sri Lankan Tamil / Sri Lankan
Region: Throughout Sri Lanka
Serves: 6–8
Prep Time: 15 minutes
Cook Time: 40–60 minutes
Difficulty: Medium

About This Recipe

This recipe documents one traditional home-style version of Seeni Sambol, a slow-cooked caramelised onion relish enjoyed throughout Sri Lanka.

Like many heritage recipes, there is no single definitive version. Every household has its own balance of sweetness, spice and acidity. Some families prepare a simple vegetarian version, while others include Maldive fish for additional depth of flavour.

The recipe below reflects a widely recognised traditional style while documenting authentic family and regional variations found across Sri Lankan Tamil communities.

What is Seeni Sambol?

Seeni Sambol is one of Sri Lanka's most beloved accompaniments. It is made by slowly cooking onions with spices until they become deeply caramelised, creating a rich balance of sweetness, savouriness, gentle heat and tanginess.

Despite its name, Seeni Sambol is not simply a sweet relish. The finished dish balances the onions' natural sweetness with chilli, tamarind and aromatic spices, making it one of the island's most versatile condiments.

It is served with everything from string hoppers and hoppers to bread, rice, curries and festive meals.

Although its name comes from Sinhala, Seeni Sambol has become firmly established in Sri Lankan Tamil kitchens and is widely enjoyed by communities across Sri Lanka.

Name & Meaning

The word "Seeni" (සීනි) means "sugar" in Sinhala.

The name refers to the sweet flavour developed during the slow caramelisation of onions rather than a large quantity of added sugar.

Many traditional recipes use very little added sugar—or none at all—relying instead on the onions' natural sweetness.

Heritage Snapshot

• Primary Culinary Tradition: Sri Lankan

• Widely Enjoyed By: Sri Lankan Tamils, Sinhalese, Sri Lankan Muslims and Burgher communities

• Region: Throughout Sri Lanka

• Typical Meals: Breakfast, Lunch and Dinner

• Difficulty: Medium

• Keeps Well: Yes

Ingredients

Core Ingredients

• 750 g red onions, thinly sliced

• 3 tablespoons coconut oil (traditional) or vegetable oil

• 2–3 dried red chillies, broken into pieces

• 1 teaspoon mustard seeds (used in many home-style recipes)

• 8–10 fresh curry leaves

• 2 cloves garlic, finely chopped

• 1 teaspoon sugar (optional – many traditional recipes rely solely on the onions' natural sweetness)

• 1 tablespoon tamarind paste or fresh tamarind pulp

• Salt, to taste

Optional Family Variations

Common in some Sri Lankan Tamil households:

• 1–2 teaspoons Maldive fish flakes (not suitable for vegetarian or vegan diets)

• ½ teaspoon freshly ground black pepper

• ½ teaspoon roasted chilli powder

• 1 small piece cinnamon

• 1–2 green cardamom pods

• 1–2 small shallots for additional sweetness

Modern Variations

Some households also include:

• Brown sugar instead of white sugar

• A small amount of grated ginger

• A splash of balsamic vinegar (modern adaptation)

Ingredient Notes

Onions

Red onions are traditionally preferred because they caramelise beautifully and develop a rich sweetness.

Some traditional cooks favour small shallots, which create an even deeper, more complex flavour.

Thin, even slices help ensure the onions cook evenly.

Tamarind

Tamarind provides gentle acidity that balances the sweetness of the onions.

Fresh tamarind pulp is traditional, while tamarind paste is a convenient modern alternative.

Sugar

Only a very small amount is required, if any at all.

The onions themselves provide most of the sweetness through slow caramelisation.

Curry Leaves

Fresh curry leaves add fragrance and depth to the finished sambol.

Equipment

Modern Equipment

• Large heavy-based frying pan

• Wooden spoon

• Sharp knife

• Chopping board

Traditional Equipment

• Heavy iron pan

• Clay cooking pot

Method

Step 1

Heat the coconut oil over medium heat.

Add the mustard seeds and allow them to pop.

Step 2

Add:

• curry leaves

• dried chillies

• garlic

Cook gently for about one minute until fragrant.

Step 3

Add the sliced onions.

Reduce the heat to medium-low.

Cook slowly, stirring regularly.

Do not rush this stage.

Step 4

Continue cooking for 30–40 minutes until the onions become soft, deep golden brown and richly caramelised.

They should never become burnt or crispy.

Step 5

Add:

• tamarind

• sugar (if using)

• salt

If using Maldive fish, black pepper or any optional spices, stir them in now.

Continue cooking for another 10–15 minutes.

Step 6

Taste and adjust:

• salt

• acidity

• sweetness

The finished Seeni Sambol should be deeply savoury with a gentle sweetness, balanced heat and a subtle tang.

Allow to cool slightly before serving.

Traditional Method

Older generations often cooked Seeni Sambol slowly over a gentle fire using heavy iron pans or clay pots.

The onions were stirred patiently for an extended period until they naturally released their sweetness. Rather than relying on added sugar, experienced cooks judged the flavour by colour, aroma and taste.

This slow caramelisation remains the defining characteristic of authentic Seeni Sambol.

How Long Should It Take?

Proper Seeni Sambol cannot be hurried.

The onions should soften gradually before slowly turning golden brown and richly caramelised.

Depending on the quantity of onions and the cooking temperature, this usually takes 40–60 minutes.

Cooking over high heat may brown the onions quickly, but it will not develop the depth of sweetness and flavour that defines traditional Seeni Sambol.

The Ideal Texture

Traditional Seeni Sambol should be soft, glossy and rich.

The onions should retain some shape while melting in the mouth.

It should never be dry, burnt or crunchy.

Traditional Variations

Like many heritage recipes, Seeni Sambol varies between regions and households.

Jaffna Style

Often features:

• Slightly more chilli

• Occasionally black pepper

• Sometimes Maldive fish

• Rich, savoury flavour

Southern Sri Lankan Style

May include:

• Slightly sweeter finish

• More deeply caramelised onions

• Maldive fish more commonly used in some households

Hill Country Style

Often reflects locally available ingredients.

Some families include:

• Ginger

• Extra curry leaves

• Less chilli

Restaurant Style

Often prepared:

• In larger batches

• Slightly sweeter

• Very soft in texture

• With a longer cooking time

Diaspora Version

Common adaptations include:

• Shallots mixed with red onions

• Tamarind paste instead of fresh tamarind

• Frozen curry leaves when fresh are unavailable

Family Variations

Every household develops its own preferred style.

Some families enjoy:

• More tamarind

• Less sweetness

• Extra chilli

Others include:

• Maldive fish

• Cinnamon

• Cardamom

• Black pepper

Many experienced home cooks rely entirely on taste rather than exact measurements, adjusting the ingredients as they cook.

Common Mistakes

• Cooking the onions over high heat.

• Burning instead of caramelising the onions.

• Adding too much sugar.

• Skipping the tamarind.

• Under-seasoning with salt.

Serving Traditions

Seeni Sambol is enjoyed throughout the day.

Breakfast

Typically served with:

• String Hoppers (Idiyappam)

• Hoppers (Appam)

• Egg Hoppers

• Pittu

• Fresh bread

Lunch

Typically served with:

• Rice and curry

• Fish curry

• Chicken curry

• Paruppu (Dal Curry)

Dinner

Often enjoyed with:

• Pol Roti

• Roast Bread

• Leftover curries

It is also a popular sandwich filling and a traditional accompaniment to festive meals.

Storage

Allow the sambol to cool completely.

Store in an airtight container in the refrigerator for up to 1 week.

It also freezes well for up to 3 months.

Research & Heritage Notes

Primary Culinary Tradition

Sri Lankan.

Also Enjoyed By

Sri Lankan Tamils, Sinhalese, Sri Lankan Muslims and Burgher communities.

Historical Background

Seeni Sambol has long been part of Sri Lankan home cooking. While its precise origins are difficult to trace, it developed as a practical way to transform onions into a richly flavoured accompaniment through slow cooking. Over time it became a staple across the island, with each community and many individual families developing their own variations.

Essential Characteristics

A traditional Seeni Sambol is defined by:

• Slowly caramelised onions

• Gentle sweetness

• Tamarind for acidity

• Chilli for balance

• Patient, slow cooking

Without properly caramelised onions, it is not considered a traditional Seeni Sambol.

Common Misconceptions

Despite its name, Seeni Sambol should not be overly sweet.

Most of its sweetness comes naturally from the onions rather than from added sugar.

Authenticity Classification

Widely Traditional

This recipe reflects a traditional style commonly prepared across Sri Lanka while documenting recognised regional and family variations.

Cultural Note

Seeni Sambol demonstrates how patience and simple ingredients can create remarkable flavour. A humble mixture of onions, spices and tamarind becomes a rich accompaniment through careful, unhurried cooking.

Many families prepare larger batches to enjoy over several days, serving it with breakfasts, rice dishes, breads and festive meals. Its ability to keep well has made it a practical staple in kitchens across Sri Lanka for generations.

Did You Know?

Many home cooks believe Seeni Sambol tastes even better the following day. Allowing it to rest overnight gives the sweetness, tamarind and spices time to mellow and develop into an even richer flavour.

Frequently Asked Questions

Is Seeni Sambol spicy?

Usually only mildly spicy, although the heat can easily be adjusted by changing the quantity of chillies.

Why is it called "Seeni" Sambol?

"Seeni" means "sugar" in Sinhala. The name refers to the naturally sweet flavour of the caramelised onions rather than a large amount of added sugar.

Can I make it vegetarian?

Yes. Simply omit the Maldive fish.

Can I prepare it in advance?

Yes. In fact, many people find the flavour improves after a day in the refrigerator.

Related Recipes

• Coconut Sambol

• Jaffna Curry Powder

• Jaffna Kool

• String Hoppers (Idiyappam)

• Pittu

• Pol Roti

• Hoppers (Appam)

• Egg Hoppers

• Fish Curry

• Paruppu (Dal Curry)

Sources & Further Reading

This article draws upon:

• Traditional Sri Lankan Tamil home cooking practices.

• Oral culinary traditions passed through generations.

• Historical Sri Lankan cookbooks and food writing.

• Academic research on Sri Lankan food culture and culinary heritage.