Onion Tomato Thokku – A spicy spicy masala that can serve as a great side dish for Idli, Dosa, Paniyaram, Paratha, Chapati etc. This is a very quick side dish that takes only 20 minutes from preparation to completion. This thokku perfectly balances the flavor of the spices as well as the naturally mild sweet onions with the tangy tomatoes.
Onion Tomato Thokku is a quick side dish that goes well with chapatti, idli dosa etc. This is a very simple recipe with minimal ingredients. This homemade onion tomato thokku is a lifesaver on busy days, as it can be prepared in advance and stored in the refrigerator for several days.
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About Onion Tomato Thokku
Onion Tomato Thokku is a classic South Indian masala made by slowly cooking onions and ripe tomatoes with spices until they turn thick and delicious. Unlike regular chutney, Onion Tomato Thokku has a thicker texture and a longer shelf life as the ingredients are cooked until most of the moisture evaporates.
I first tasted Onion Tomato Thokku in my office when my colleague brought it for lunch. I liked it so much that I asked her for the recipe and tried it for dinner that day. It is quick, easy to make and tastes great too. Since then it has become my staple dish when I want a quick side dish.
It’s made using simple pantry staples and requires minimal preparation yet tastes insanely delicious. The trick here is to chop the onion and tomato finely so that it cooks quickly and gives a thick thokku consistency. Whether served with breakfast, as a lunchbox companion, or as a mix with instant rice, this traditional recipe brings out the authentic South Indian flavour.
If you love simple homemade masala packed with flavour, this Onion Tomato Thokku will definitely become a favourite. I am sure your family will demand to make it often as it does with mine.

Onion Tomato Thokku Video
Onion Tomato Thokku Ingredients
- Onion Onion is added for taste and a little piece is added to the thokku which makes it taste very good.
- Tomato – Tomato is added to give spicy taste and give volume to this thokku.
- Oil – I used regular cooking oil which is peanut oil. You can use any flavorless cooking oil
- mustard seeds – It is added for tempering, make sure it is tempered before adding other ingredients.
- Garlic – Adds great flavor and taste.
- curry leaves, red chilli – Curry leaves enhance the taste and red chilli is added for spice.
- spice powder – I have used turmeric powder and red chili powder.
- Salt – To balance taste and enhance flavor.

How to make Onion Tomato Thokku step by step
1. Heat 2 tbsp oil and add ½ tsp mustard, let it splutter.

2. Add 2 small red chillies, few curry leaves, let it splutter. Then add 1 tablespoon finely chopped garlic into it.

3.Fry the garlic until it turns golden.

4. Add 1 medium sized onion finely chopped.

5.Fry until golden.

6. Add 3 medium sized tomatoes finely chopped.

7. Fry until soft and mushy.

8. Mash it well with a masher.

9.Give a quick mix. Add salt as per taste, ¼ teaspoon turmeric powder and 1 teaspoon red chili powder.

10. Mix it well.

11.Add some water and let it boil well.

12. Boil until it thickens well, turn off.

Onion Tomato Thokku is ready! Enjoy with idli, dosa etc.

Expert Tips
- Onion – Chop the onion finely and evenly.
- Tomato – Choose fully ripe, juicy tomatoes for best flavor and natural sweetness. Ripe tomatoes also give a rich color to the thokku and help in creating the right balance of spiciness.
- Oil – Do not compromise with oil, there should be a little more oil for this thokku.
- spice powder – Masala powder should not burn, hence after frying for a minute, immediately add water, this is done to prevent burning. If you like masala flavor more then add garam masala powder and fennel while adding tadka.
- cook until thickened – A good thokku should be thick and spreadable, not watery. Continue cooking on low medium flame until excess moisture evaporates and the mixture becomes thick.
serving and storing
Serve Onion Tomato Thokku with chapatti, idli, dosa etc. This thokku remains good for about a week in the refrigerator. Allow the thokku to cool completely before transferring it to a clean, dry airtight container. Always use dry spoon to maintain freshness and extend shelf life.
general questions and answers
1.What is Onion Tomato Thokku?
Onion Tomato Thokku is a traditional South Indian dish made by cooking onions, tomatoes and spices until thick and delicious. It is usually served with idli, dosa, chapati, curd rice and boiled rice.
2. How is Thokku different from chutney?
Thokku is cooked for a long time until it thickens, while chutney is usually ground and has a shorter shelf life. Thokku also has low moisture content, making it suitable for storage.
3.Which tomatoes are best for this recipe?
Ripe, red and ripe tomatoes are ideal as they offer the best flavour, color and natural sweetness and flavour.
4.Is it too spicy, is it suitable for children?
No, it is mild spicy and very suitable for children too.
5.Why is my thokku watery?
If the tomatoes are not cooked long enough, there may be water in the thokku. Continue cooking until the moisture evaporates and the mixture becomes thick.

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📖 Recipe Card
Onion Tomato Thokku Recipe
Onion Tomato Thokku – A spicy spicy masala that can serve as a great side dish for Idli, Dosa, Paniyaram, Paratha, Chapati etc. This is a very quick side dish that takes only 20 minutes from preparation to completion. This thokku perfectly balances the flavor of the spices as well as the naturally mild sweet onions with the tangy tomatoes.
Material
- 1 tablespoon garlic finely chopped
- 1 medium sized onion finely chopped
- 3 medium sized tomatoes finely chopped
- salt to taste
- ¼ small spoon turmeric powder
- 1 small spoon chilli powder
to get angry
- 2 tablespoon Oil
- one and a half small spoon mustard seeds
- 2 small red chilli
- some curry leaves
Instruction
-
Heat 2 tbsp oil, add ½ tsp mustard, let it splutter.
-
Add 2 small red chillies, few curry leaves, let it splutter. Then add 1 tablespoon finely chopped garlic into it.
-
Fry the garlic until it turns golden.
-
Add 1 medium sized onion finely chopped.
-
Fry until golden.
-
Finely chop 3 medium sized tomatoes and add them.
-
Fry until soft and mushy.
-
Mash it well with a masher.
-
Mix quickly. Add salt as per taste, ¼ teaspoon turmeric powder and 1 teaspoon red chili powder.
-
Mix it well.
-
Add some water to it and let it boil well.
-
Boil it well until it thickens, turn it off.
-
Onion Tomato Thokku is ready! Enjoy with idli, dosa etc.
Video
notes
- Onion – Chop the onion finely and evenly.
- Tomato – Choose fully ripe, juicy tomatoes for best flavor and natural sweetness. Ripe tomatoes also give a rich color to the thokku and help in creating the right balance of spiciness.
- Oil – Do not compromise with oil, there should be a little more oil for this thokku.
- spice powder – Masala powder should not burn, hence after frying for a minute, immediately add water, this is done to prevent burning. If you like masala flavor more then add garam masala powder and fennel while adding tadka.
- cook until thickened – A good thokku should be thick and spreadable, not watery. Continue cooking on low medium flame until excess moisture evaporates and the mixture becomes thick.
nutrition Facts
Onion Tomato Thokku Recipe
Quantity per serving (50 grams)
calories 185
Calories from fat 135
% daily value*
thick 15g23%
saturated fat 1 g6%
Trans fat 0.1 gram
Polyunsaturated Fat 4 g
Monounsaturated Fat 9 grams
sodium 56 mg2%
potassium 349mg10%
carbohydrate 12 grams4%
fiber 3g13%
sugar 5 grams6%
protein 2 grams4%
Vitamin A 1336iu27%
vitamin C 150 mg182%
calcium 68 mg7%
Iron 1mg6%
*Percent Daily Values are based on a 2000 calorie diet.
