To make sambar : Rinse dal and set aside. In a pressure cooker heat oil add tomato and carrot saute till tomatoes becomes mushy then add dal along with turmeric powder and salt. Add water and pressure cook for 4 whistles in low medium flame.
Allow pressure to release by itself. Mash the dal well and heat it up. Make a paste with sambar powder and little water and add it to the boiling sambar.
Let it boil, add water to adjust the consistency if it becomes too thick. Let it boil for a good 5 minutes.
Then add tamarind water. In a kadai – add the items listed under ‘to temper’ sauté it for a minute.
Add it to sambar and let it boil for 5 more minutes. Then garnish with coriander leaves , add a teaspoon of ghee and switch off.
To make mini idli: Keep the idli batter ready. Take the idli batter in a small spoon, pour the batter into mini idli molds.
Now carefully place it in your idli stand stacked along with the normal idli mold and place it inside the idli cooker having water till ¼th of the cooker.
Steam it for 8-10mins.Switch off , sprinkle a teaspoon of water on the idlis and set aside for 5 minutes. Use a spoon to run around the idli in the mold, flip them out and keep aside. In a plate add a ladle full of sambar first.
Arrange the mini idlis then add more sambar on top. Drizzle ghee. Garnish with chopped onion and coriander leaves.
Serve hot!