
Mix them together till the sugar melts. Now add vanilla essence.
In a separate bowl, sieve together flour, baking powder and baking soda. Add chocolate chips and mix so that the chocolate chips get coated with the flour. (This step is important as it prevents the chocolate chips from sinking to the bottom of the cake)
Now add the dry ingredients into the wet ingredients. Mix nicely with the help of a spatula.
Pour this batter into the loaf pan. Add some chocolate chips on the top.
Bake it for 30-35 minutes at 180 degree centigrade or till a toothpick inserted into the center of the cake comes out clean.