South Indian Onion Chutney
This South Indian onion chutney balances sweet cooked onions, steady chili heat, and rounded tang in one bold spoonful. Finished with a simple tempering, it pairs naturally with idli, dosa, rice, and snacks. The texture can be kept smooth or slightly coarse, depending on how you like it.
Prep Time 10 minutes mins
Cook Time 20 minutes mins
Total Time 30 minutes mins
Course Condiments, Side Dish
Cuisine Indian
Servings 2 cups (approximately)
Calories 80 kcal
For the Chutney
- 5 medium red onions sliced
- 10 dried red chilies
- 2 tablespoons oil
- 1 tablespoon urad dal
- 1 tablespoon chana dal
- 1 teaspoon cumin seeds
- ½ teaspoon fenugreek seeds
- 8-10 garlic cloves
- ½ teaspoon kosher salt adjust as per taste
- 1 tablespoon tamarind concentrate
For the Tempering
- ¼ cup oil
- 1 teaspoon mustard seeds
- ½ teaspoon urad dal
- Pinch asafoetida
- 8-10 curry leaves
- 2 teaspoons grated jaggery
- ½ teaspoon kosher salt
Soak the dried red chilies in hot water for 10 minutes. Drain and set aside.
Heat 2 tablespoons oil in a large pan over medium heat. Add urad dal, chana dal, cumin seeds, and fenugreek seeds. Sauté until the dals turn lightly golden and aromatic.
Add garlic cloves and cook briefly, just until fragrant. Add sliced onions and cook until they soften and shrink in volume. Stir in ½ teaspoon salt and continue cooking until the onions lose their raw sharpness and change color slightly. They should soften fully but not brown deeply.
Add the soaked red chilies and tamarind. Cook for 2 minutes to bring everything together.
Remove from heat and cool completely. Transfer the mixture to a blender and grind to a thick paste. Do not add water. Blend until smooth or leave it slightly coarse for a more traditional, home-style texture. The chutney should be thick and spoonable, not runny.
In a separate large pan, heat ¼ cup oil over medium heat. Add mustard seeds and allow them to splutter. Add urad dal, asafoetida, and curry leaves. Let the tempering turn fragrant.
Pour in the prepared onion paste and cook for about 2 minutes. Add jaggery and the remaining ½ teaspoon salt. Continue cooking until the oil begins to separate from the sides of the pan. This step deepens the flavor and improves shelf life.
Serve warm or at room temperature with idli, dosa, rice, or roti.
- Adjust the number of dried red chilies based on your heat preference.
- Tamarind concentrate can be replaced with whole tamarind. Use about 1 small ball.
- If jaggery is not available, substitute it with brown sugar to balance the heat and acidity.
- Cook until the oil separates properly in the final step. This improves flavor depth and helps the chutney keep longer in the refrigerator.
- Store in an airtight container in the refrigerator for up to 5 days. Always use a clean, dry spoon when serving.