Beat the egg whites till fluffy.
Now cream the butter and sugar with an electric beater or a spatula till it changes colour
Then add the beaten egg whites little by little to the butter and sugar mixture and combine gently with your spatula.
Gradually add the sooji or Rava in batches along with the egg whites, and keep mixing to get a smooth batter. Continue to mix until the eggs and sooji is used up. Add the coconut and mix well.
Finally, add the rose essence and also the baking powder. Mix the batter well but gently and then cover and let the batter rest overnight and bake it the next morning.
If you do not want to keep it overnight then pour the batter into two round thalis or two 8 inches cake tin lined with parchment paper
Finally, preheat your oven to 180 deg C and bake the cake for 35 to 40 minutes or till a skewer inserted comes out clean.
You can decorate this cake with icing, some icing flowers, and silver beads if making for an occasion.
For the icing - Mix 100 grams icing sugar and 50 grams butter. Beat well till it changes its colour to white.