First of all we'll prepare batter for dosa. Soak rice, urad daal, chana daal and fenugreek seeds overnight in water. Take overnight soaked mixture in the morning and blend them. Add curd and leave the mixture for fermentation during the whole day for 8-10 hours. Once it is fermented properly it become ready to make dosa. Add salt and water if required to get required consistency.
Now it's time to prepare Sambhar. So first of all chop bottle guard, brinjals and French beans. Wash them thoroughly. Put chopped vegetables with soaked arhar daal, water and some salt in cooker and let boil for 8-10 whistles.
Heat ghee in a pan, add cumin seeds and asafoetida when it start to chap add turmeric powder, red chilli powder and sambar masala. Now blend the tomatoes, ginger and green chilli and add in pan to fry. Fry them until ghee start seperating.
Now add boiled vegetables and cook them for 10-15 minutes with continuous stirring. Add tamarind pulp and cook for 2 minutes. Add water according to consistency required and add salt and then cook them till water start boiling and till required consistency is achieved. Sambhar is ready.
Now we'll prepare stuffing. First wash and boil potatoes in cooker for 5-6 whistles. Heat ghee in a pan, add mustard seeds and asafoetida and when they start to chap, add turmeric powder, red chilli powder. Now add boiled potatoes, green chilli and Salt. fry them for 10 minutes. Stuffing is also ready. Chop the onion and keep it aside.
Finally we'll make dosa. Heat a tawa, grease it with oil. Take the batter and pour it on tawa and spread it evenly. Now bake it on medium flame till the side get in golden brown in colour. Spread stuffing and chopped onion over it and roll dosa to get the shape. Now serve the dosa with hot Sambhar, chutney.
