Wash the grinder before grinding.
Drain all the water used for soaking the dal.
Switch on the grinder and while it s running, add the soaked urad dal and fenugreek.
Add ¼ c water.
Grind for 5 mins and stop. Scrape down the sides. Add ¼ c more and continue to grind for 5 mins.
Repeat this process - grinding, stopping, scrapping, adding ¼ c water and grinding for 2 more times.
The urad dal takes about 22 mins to grind to a light fluffy batter. Use approximately 1 c water to grind Urad dal.
To check the consistency of the batter, drop a blob of the ground urad dal batter into a bowl of water. If it floats without disintegrating, its done. The batter will resemble butter in texture.
When done, transfer the ground urad dal batter to a mixing bowl.