Making Gujarati Dal Vada:
In a mixing bowl, add 2 cups of green moong dal and wash it thoroughly. Add enough water and soak the dal for 4 hours.
Once the dal is properly soaked, rub it gently between your hands to loosen and remove the outer skin. Rinse and discard as much of the skin as possible.
Drain the soaked dal completely. Transfer it to a mixer jar, add ½ cup water, and grind it into a thick and coarse batter. Do not grind it into a smooth paste.
Transfer the batter to a mixing bowl and whisk it for 3–4 minutes until it becomes light and fluffy.
Cover the batter and let it rest for 30 minutes.
After resting, add salt to taste, 1 tbsp crushed black pepper, 4–5 finely chopped green chilies, ½ cup chopped coriander leaves, 1 tbsp hot oil, and 1 tsp hing (asafoetida). Mix everything well. The batter is now ready.
Heat oil for deep frying. Using your fingers and thumb, carefully drop small portions of the batter into the hot oil. Keep the flame high initially so the vadas hold their shape, then reduce it to medium and fry until they turn golden brown and crispy from all sides.
Serve the hot and crispy Dal Vadas with sliced onions, fried green chilies, and tea.