sentence: mix the flour salt baking powder and water sentence: add oil chiilis and curry leaves to a pan sentence: add the mustard cumin and fennel seeds to the pan sentence: add the onion to the pan sentence: add the salt and spices to the pan and stir sentence: add the potatos to the pan sentence: spread the batter on the pan sentence: place the mixture on half of the dosa sentence: fold the dosa over to cover the mixture