Preheat oven to 180 degree c.Grease and dust flour a 9 inchs round baking cake pan.
Sieve the flour with baking powder.
Take a large bowl beat the sugar,oil and milk.
Beat in the eggs one at a time.Add the vanilla essence and mix well.
Add flour and baking powder and mix well.
Divide the batter into two equal parts.
In the other bowl mix the cocoa powder.
Now pour 2 tbsp batter plain batter in the centre of the baking dish.
Then pour 2 tbsp cocoa batter in the top of the plain batter.
Now repeat the process until both the batter is finished.
Bake for 40 to 45 mins in the pre heat oven.
Now the delicious zebra cake is ready.
