South Indian Onion Thokku: Spicy & Tangy Side Dish Recipe

Onion Thokku, a vibrant and flavorful South Indian condiment, is a culinary masterpiece that elevates any meal. This spicy and tangy side dish, made with caramelized onions, a medley of spices, and a hint of sweetness, is a testament to the region's rich culinary heritage. Its versatility shines through—it's perfect alongside rice, idli, dosa, or even as a flavorful addition to your favorite curries. The depth of flavor comes from slowly cooking the onions until they achieve a rich, almost jam-like consistency, unlocking their natural sweetness and allowing the spices to bloom beautifully. Forget bland side dishes; Onion Thokku is a burst of exciting tastes in every bite.

This recipe unlocks the secrets to creating a truly authentic and delicious Onion Thokku, perfect for both seasoned cooks and enthusiastic beginners. Ready to embark on a culinary adventure? Let's dive into the simple yet rewarding step-by-step process outlined below to make your own batch of this sensational South Indian side dish.

Tools Needed

  • Pan
  • Blender/Food processor
  • Mixing bowl

Ingredients

  • Shallots: 300g
  • Large Onions: 200g
  • Fenugreek seeds: 1 tsp
  • Mustard seeds: 1 tsp
  • Coriander seeds: 1 tsp
  • Cumin seeds: 1/4 tsp
  • Gingerly oil: 1/2 cup
  • Urad dal: 1 tsp
  • Red chilies: 2
  • Asafoetida powder: 1 tsp
  • Salt: 2 tsp
  • Red chili powder: 2 tsp
  • Turmeric powder: 1/2 tsp
  • Curry leaves: a handful
  • Lemon juice: 1 lemon
  • Tamarind extract: 1 tbsp
  • Jaggery: 1 tsp
  • Freshly ground Masala: 1 1/2 tsp

Step-by-Step Instructions

Step 1. Prepare and Sauté Onions and Spices

  • Roughly chop the shallots and large onions. Grind them together in a pulse mode until coarsely ground, not a smooth paste. Transfer to a bowl.
  • Roast fenugreek, mustard, coriander, and cumin seeds in a pan until fragrant. Grind into a fine powder once cooled.
  • Heat gingerly oil in a pan. Add urad dal, mustard seeds, cumin seeds, and red chilies. Once mustard seeds splutter, add asafoetida powder.
  • Add the ground onion mixture and stir well until the raw smell disappears and moisture evaporates.
Roast fenugreek, mustard, coriander, and cumin seeds in a pan until fragrant. Grind into a fine powder once cooled.Heat gingerly oil in a pan. Add urad dal, mustard seeds, cumin seeds, and red chilies. Once mustard seeds splutter, add asafoetida powder.Add the ground onion mixture and stir well until the raw smell disappears and moisture evaporates.
Prepare and Sauté Onions and Spices
  • Add salt, red chili powder, and turmeric powder. Mix well.
  • Add curry leaves.
Add salt, red chili powder, and turmeric powder. Mix well.Add curry leaves.
Prepare and Sauté Onions and Spices

Step 2. Simmer and Flavor

  • Add lemon juice and tamarind extract. Mix well, cover the pan slightly and simmer for 15 minutes.
Add lemon juice and tamarind extract. Mix well, cover the pan slightly and simmer for 15 minutes.
Simmer and Flavor

Step 3. Add Sweetness and Masala

  • Add jaggery and freshly ground masala. Mix well and cook for another 5 minutes on low flame.
Add jaggery and freshly ground masala. Mix well and cook for another 5 minutes on low flame.
Add Sweetness and Masala

Step 4. Cool and Store

  • Let cool completely before storing in an airtight container.
Let cool completely before storing in an airtight container.
Cool and Store

Read more: Easy Instant Bell Pepper Snack Recipe | Healthy & Flavorful

Tips

  • Using a combination of shallots and large onions adds a nice flavor and texture. You can use just one type if you prefer.
  • Adding fenugreek and mustard seeds powder helps increase the shelf life of the thokku.
  • The oil separating indicates the thokku is cooked perfectly.
  • Store in an airtight container for up to 2 weeks.

Nutrition

  • N/A

FAQs

1. Can I adjust the spice level in the Onion Thokku?

Absolutely! Reduce the amount of chili powder or green chilies to make it milder, or add more for extra heat. Adjust to your preference.

2. How long does Onion Thokku last?

Stored in an airtight container in the refrigerator, your Onion Thokku should last for about a week. For longer storage, consider freezing it.

3. What can I serve Onion Thokku with?

It's incredibly versatile! Enjoy it with rice, idli, dosa, vada, roti, or even as a topping for your favorite curries. It's delicious with almost anything!


With its vibrant flavors and simple preparation, this South Indian Onion Thokku recipe is a guaranteed crowd-pleaser. Enjoy the satisfying crunch and the delightful interplay of sweet, spicy, and tangy notes in every spoonful. Now go ahead and impress your family and friends with this delicious and easy-to-make side dish!