White Khatta Dhokla is a Gujrati dish, it is made of white urad Dal. Even I tried making it by the help of my neighbour who are Gujrati. This recipe really came out well, & I love it very much. Just have a look.
Rinse the rice and urad dal a couple of times in water.soak them together or separately in enough water for 3-4 hours.drain them well and then in a wet grinder, add the drained rice and urad dal.
add chopped ginger and green chili also.grind the rice and urad dal adding 2 to 3 tbsp water pour the batter in a deep bowl or pan.
add the sour yogurt and salt.stir well and keep the batter in a warm place to ferment overnight or for 7-8 hours.before preparing the dhoklas, grease the pan in which you will be making the dhokla with oil.
add water in your steamer or pan or pressure cooker and let the water come to a boil.first add oil in the batter and stir well.then add the fruit salt or baking soda to the batter.be quick enough to stir well, so that the fruit salt is mixed well in the batter.pour on a greased pan
place the pan with the dhokla batter in the steamer or pot or pressure cooker.cover and steam for 20-25 minutes or more till a tooth pick inserted in the khatta dhokla comes out clean.
when done, remove and let the khatta dhoklas become warm.slice and serve the khatta dhokla or white dhokla with coriander chutney.