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How to make rava dosa
Combine the semolina and buttermilk.
Whisk together the semolina and buttermilk in small mixing bowl until evenly combined. Cover the bowl and allow the mixture to rest in a warm place for 15 to 30 minutes.
Unlike other types of dosas, rava dosa does not need to ferment for a long period of time. While this mixture rests, you can continue preparing the rest of the ingredients.