Take a pan add oil and sugar.
Add margarine.
Stir it continuously.
Color has been changed.
Add sweet potatoes .stir it continually for 10 minutes.
Remove it.
Take a bowl add eggs whites ,oil batter it well.
Add sugar.
Add whole wheat flour ,baking powder,vanila essence mixed it well.
Add caramelized sweet potatoes
Make a smooth batter.
Take a cake mould bowl add oil grease it well.
Spread flour all over.
Add cake batter.
Take kodai keep it cake mould bowl.
Cover it ,with low flame for 18/19 minutes.
Remove it from gas oven.
Wait for normal temperature.
Take a plate turn over cake mould bowl.
Cut into pieces serve with cherries.
