Take a mixing bowl, big enough for the batter to fit in. Add Handvo dry mix, yogurt and water. You might need more water or less too. The batter should be medium thick consistency.
Let the batter sit at room temperature for 4-6 hours, covered. (If you do not plan on making it immediately, you can leave the batter in the refrigerator for 2-3 days. Just keep checking on it. I like to stir it. I leave out yogurt initially if I am going to store it in the fridge longer and add yogurt for room temperature fermentation.)
Once the fermentation is done, pre heat the oven at 400 F. Take a round or 9x13 baking pan, grease it with oil. Leave it aside.
Add ginger, garlic, green chili paste, turmeric, salt, jaggery, oil and lemon juice in the fermented batter. Add vegetables too. Mix well until everything is mixed well.
Add baking soda and mix very well. You want to make sure the soda is dispersed everywhere in the batter. Pour this batter in the baking pan.
Tempering – Heat some oil in a small pot on medium heat. Once the oil is hot, add mustard seeds. As soon as the mustard seeds crackle, add asafetida, sesame seeds, cloves, curry leaves, red chilies and turn off the flame. Add red chili powder too. Your oil should not be too hot, otherwise the vaghar will burn. It won’t taste good. So be careful. Immediately pour this vaghar on top of the handvo batter in the baking tray. Do not mix at this point. It stays afloat on top.
Bake for about 30-40 minutes or until the top get nice deep brown color and toothpick inserted in the middle comes out clean. If you think its baked but there is not enough browning on top, you can broil for 2 minutes on high. Always be careful when broiling anything. It can burn something very quickly. Put a timer or stay next to the oven.
Remove it and let it cool down for 10 minutes. If you try to cut into it when it’s hot, it will be little bit soft. After cooling it down, it sets up better.
Serve it with some tea or coffee as a snack alongside chutneys. You can also serve it for dinner.