Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
  50      grams         black gram dhal -- (ulundu) with skin
 175      gram          uncooked rice
  75      grams         cooked rice
   1 1/2  cups          water -- (to 2)
   1      teaspoon      salt -- (or), to taste
                        cooking oil -- sesame oil or ghee

Preparation:

Wash rice and dhal and soak each separately overnight or for at least 7 to 8 hours. Drain, remove skin from the dhal. Grind rice and dhal together with the cooked rice and water in a blender until smooth. Strain batter through a fine sieve. Add salt and mix well. Leave to ferment for 8 to 10 hours. (Refrigerate if not using it for breakfast.) Grease an iron griddle lightly with gingili oil. Pour a ladleful of batter onto the centre of the griddle. Spread the batter immediately with the back of the ladle starting from the centre, in a clockwise motion to make a thin pancake. Cook for about half a minute or until the underside turns slightly brown. Remove thosai from the griddle and repeat till the rest of the batter is used up. Footnote: Grease the griddle lightly with sesame oil after each thosai is made. Sesame oil is available in Indian grocery shops.