5-6 pieces of white part of watermelon
1 cup White Rice
Salt to taste
Soak rice in water for about 4-5 hrs. Wash soaked rice 2-3 times and keep it aside.
Grind soaked rice along with sliced watermelon pieces into smooth paste.(Only white part of the watermelon as shown the picture below.) Add salt, water if required. (Consistency of the batter should be like that of milkshake)
Heat the Tava(Iron Tava preferred). Pour a spoonful of batter at the centre, spread it with the back of the spoon to a thin round. Add 1 tsp of oil/ghee on top of dosa, cover it in a lid and cook it for a minute in medium flame. Cook other side of the dosa as well for about 1 min. Serve hot with any chutney or sambar.
The ingredients mentioned above will serve 6-8 Watermelon Dosas.