Delicious Ulunthu Vadai: Tips for Crunchy Perfection

5–7 minutes
Ulunthu Vadai

South Indian festivals definitely include this menu, which is a delightful array of flavors and textures. Fries and fritters are something we all love to enjoy, showcasing a perfect blend of spices and ingredients that elevate any gathering. Be it as an accompaniment in a sumptuous feast, enjoying a snack on a rainy day, or just to grab a quick bite, these crispy delights never fail to satisfy our cravings. Vadai is one of the prominent snacks that comes to our mind when we think of festive treats. With its crunchy outside and a soft, fluffy inside, the type of vadai that makes us irresistibly hungry to grab one more is often seasoned with aromatic herbs and spices, creating a mouthwatering experience. Whether served with tangy chutneys or enjoyed on their own, vadai stands out as a quintessential part of South Indian culinary culture, inviting friends and family to gather around and relish the moment together.

Perfect urad is the key component for achieving a perfect crunch. The ingredients are simple. Perfection is essential, and it is doable.

Urad is a protein rich pulse it has around ~22-25% protein, especially it has types of proteins that make idli, dosa, vada and papad possible.

  1. Globulins(major fraction-~50-60%) responsible for elastic networks and it traps air and water. It is because of this Globulins that Urad can hold air without eggs.
  2. Albumins(~10-15%) responsible for foaming, batter smoothness and emulsification.
  3. Glutelins(~20-25%)they are called as structural proteins they are responsible for binding starch and protein together.
  4. Prolamins( trace amounts)which is abundantly available in wheat gluten

Urad proteins are naturally good at forming air- holding gels at room temperature.

Urad is a special pulse among all the pulses because it has the right proteins at right proportions.

So sourcing a good quality Urad is the key for preparing good vada and obviously good jangiri, as the texture and flavor of these dishes heavily depend on the quality of the lentils used.

Using fresh and well-sourced Urad can significantly enhance the overall taste and make sure that the vada is crispy on the outside yet soft on the inside, while jangiri shines with its sweet, syrup-soaked goodness. To help you achieve this, I will be adding a detailed recipe that covers not only the necessary ingredients but also tips on how to select the best Urad, as well as step-by-step instructions for perfecting your vada and jangiri at home. The vadai recipe is given in this blog, while I have a separate post dedicated to jangiri, ensuring that you can easily find and follow both recipes for an exquisite culinary experience.

Getting back to business. Let’s make Crunchy Vadai.

All you need is urad, salt, water, asafoetida, ginger, curry leaves, oil, raw rice, peppercorns, coriander leaves, onion (optional), and green chillies; that’s all the essential components for a delightful dish. The simpler version will be needing urad, water, salt, oil, and asafoetida—nothing more. However, if you’re aiming for a more robust flavor, consider adding in finely chopped ginger for that extra zing and aromatic curry leaves that enhance the overall taste profile. Including some peppercorns can provide a subtle heat, while the coriander leaves can add a refreshing touch at the end. If you’re feeling adventurous, the optional onion can caramelize beautifully and add a sweet undertone to balance the spices. Lastly, don’t forget the green chillies if you prefer a spicy kick; they can really elevate the dish. Let’s get started.


  • Urad – 250 gms
  • Water – 500 ml
  • Raw Rice -10 gms ( 2 tsp)
  • Salt – 7 gms(1.5tsp)
  • Asafoetida -3 gms
  • Ginger finely chopped – 2 tsp (Optional)
  • Curry leaves finely chopped – 2 tsp (Optional)
  • Coriander leaves finely chopped – 2tsp (Optional)
  • Peppercorns – 1 tsp
  • Onions finely chopped – 2 tbsp (Optional)

Preparation:

  1. Wash and soak the urad and raw rice for at least 30 minutes to an hour.
  2. It is necessary to stick to the recommended soaking time, to prevent the vadai from soaking in oil.
  3. After washing the urad, soak them with the given water measurement.
  4. The same water can be used for grinding.
  5. Use wet grinder preferably.
  6. Grind the urad to a smooth batter while sprinkling water little by little.
  7. This step is crucial do not pour the water the batter will turn runny.
  8. Keep turning the urad to avoid them sticking at the corner.
  9. The 500 ml water will be used up.
  10. You can see fluffy batter after grinding for about 20 to 30 minutes.
  11. While finishing you can add salt and asafoetida to the wet grinder to get an even mix.
  12. Now the vadai batter is ready. To this mix all the ingredients to zing up the vadai or just keep it plain.
  13. If you want to fry the vadai a little later store it in an airtight container and refrigerate it instantly.
  14. Else heat oil in the pan. Temperature of the oil is crucial. Not too hot nor too low. Just the right amount of heat. Urad doesn’t like heat.
  15. When you feel the heat of the oil. Drop a little droplet of the batter into the oil to see if the batter bubbles back. If yes the oil is at the right temperature.
  16. Wet your hands. Scoop a fair amount of the batter and roll it you can find them smooth and shiny.
  17. Use the vessel’s side wall for scooping the batter.
  18. Make your hand like a cup while scooping the batter.
  19. The side wall and the cupped palm will help the batter to form a rolled shape.
  20. This method will help to keep even measurement while scooping the batter.
  21. Now insert your thumb in the batter and give a pull towards you.
  22. This motion will create a big decent hole in the middle.
  23. Now drop the batter gently into the oil and fry.
  24. Once golden on both the sides the vadai is just ready to be removed.
  25. Serve hot with Sambar and Chutney.

TIPS IF GRINDING USING A MIXER JAR:

  • All the steps of grinding are the same. To guarantee smooth grinding, run the mixer in pulse mode.
  • Addition of water is like grinding in a wet grinder.
  • Remember urad hates heat.
  • If you run the mixer in full speed just like Sha’Carri Richardson protein will denature.
  • Vadai will end up like a bouncer.
  • Add cold water while grinding to keep and balance the heat.
  • After grinding add the batter to a large bowl.
  • Mix the batter using your palm in a single direction for 2 to 3 minutes.
  • This will help in air incorporation. This step is not required if a wet grinder is used but for mixer grinder do not skip this step.
  • Rest all remains the same.
  • This method will give soft vadai but the number of vadai will definitely be lesser than the wet grinder method.