Salt 1 pinch
Baking Powder 1 teaspoon
Vanilla essence 1 teaspoon
Red and Green food colour to requirement
Preheat oven at180-degree centigrade.
Prepare cake pan with butter paper lining, grease and dust plain flour
Sieve flour with salt and baking powder and set aside.
Mix Sugar with butter and beat until creamy and fluffy in texture now add vanilla essence.
Add eggs one by one and beat the mixture till fluffy.
Gradually fold the flour in butter batter in three portion
Now the key to this watermelon cake is put green and red food colour in separate bowls
Mix 3/4 cake batter in red colour and 1/4 portion of cake batter in green colour. you cake add the white chocolate chip or green chocolate chip in the batter of red colour. .Pour red batter into the centre of the greased pan first and now carefully pour green batter alongside the red batter.
Bake cake batter in the oven for 45 minutes or till the toothpick inserted comes clean out of the centre
Cut the slices like watermelons and serve.