First beat curd and powdered sugar. Beat till sugar desolve. Add oil and vanilla essence. Beat 2-3min.
Sieve flour, baking soda, baking powder, and salt
Mix well.
Mix dry ingredients in wet ingredients, slowly and mix well. Now add milk and make smooth batter.
In another bowl take coco powder and milk, mix well. Now take some white batter, and mix in it. Chocolate batter is ready.
Firstly pour white batter into greased tin. Then pour chocolate batter. Again pour white then chocolate batter. Now line with toothpick.
Pre heat oven at 180℃, and keep tin into oven fir 40 min, or till complete cook.
