firstly, take bread slices and cut the sides. this helps to prepare white idlis.
furthermore, grind to smooth powder like bread crumbs.
transfer bread crumb in a mixing bowl with rawa and mix well.
also add salt to taste and a cup of thick curd.
add water as required to prepare idli batter consistency.
also add ¼ cup of water above the batter so that it doesn't dry up.
rest the batter for 20 -30 minutes.
just before steaming add a pinch of baking soda and mix well till it turns frothy.
brush the plates with oil and pour the batter immediately into the idli plate. do not rest the batter.
you have to steam it for 8-10 mins on medium flame. allow it to rest for 5 mins then unmould.
serve hot with coconut chutney and sambar.