VegetarianOrigin Tamil Nadu/Karnataka/KeralaPrep 30 minutes, plus soaking and standing timeCook 20 minutes
Thin, golden fermented rice and lentil crêpes with crisp, lacy edges and a tender centre. They carry a gentle, savoury tang from overnight fermentation and are traditionally eaten with chutneys, spiced potatoes, and lentil stew.
Place 350 g parboiled rice and 700 g basmati rice into a large bowl, cover generously with cold water, and leave to soak for 10 hours.
In a separate bowl, submerge 250 g urad dal in cold water and soak for 4 to 5 hours. Drain the dal thoroughly and purée in a blender until completely smooth and creamy, then transfer to a large mixing bowl.
Drain the soaked rice mixture and rinse with cold water. Transfer to the blender with the grinding spices (and 1 tbsp pressed rice, if using for a softer texture) and blitz into a fine, smooth paste.
Add the ground rice paste to the dal paste, season with salt to taste, and stir well to combine. Cover the bowl and leave it in a warm draught-free spot to ferment overnight.
Whisk 0.25 tsp baking powder into the fermented batter and beat vigorously until light, smooth, and airy.
Set a flat tawa or heavy non-stick frying pan over medium-high heat. Test the temperature by sprinkling a few drops of water onto the surface; once they sizzle and evaporate, brush with a thin film of the 250 g ghee.
Pour a ladle of batter into the centre of the pan and quickly spread it outwards in concentric circles into a thin, even disc.
Cook undisturbed for 2 to 3 minutes until the base turns deep golden-brown, the edges become lacy and crisp, and the centre sets. Transfer to a warm platter and repeat the cooking process with the remaining batter, greasing the pan with ghee before each dosa. Serve immediately with warm potato filling, chutney, and sambar.
Use 25% of the baking powder's weight (e.g. 1 g for 4 g) and add 2 g cream of tartar or 1 tsp lime juice per 100 g flour. Mix quickly and bake at once.
Use 120% of the weight; melt gently over low heat to avoid burning the milk solids, which will yield a softer, creamier richness rather than a nutty aroma.