Mix the flour and water until they become thin,then add salt

It can go very well with Coconut,Chutney too, if you want you can add chopped onions and green chillies over the dosa for enhanced taste (optional)

Note: For grated taste you can go for one more step ahead and temper the chopped onions, chopped green chillies, urad dal, mustard, hing and grated Coconut with the tablespoon of Gingelly Oil. Then mix it in the batter and pour crispy dosas