Preheat oven at 180°
Mix curd and sugar till sugar dissoves than add baking soda and baking powder and mix
Add maida and vanilla essence and mix it
In another bowl mix milk and cocoa powder and add one spoon batter in it and mix
Pour this cocoa batter in cone and keep aside
Fill cup moulds three fourth with white batter and make pattern with cocoa batter cone
Bake it in preheated oven for 20 minutes at 180°
