Beat the Butter till Smooth. Cream the Butter with Sugar for 2-3 Mins till Pale white and Fluffy.
Add the Eggs one at a time mixing each egg well after every addition.
Add Vanilla Essence, Mix well.
Sift together the whole wheat flour, baking powder and salt. Mix well to disperse the baking powder evenly. Instead of Whole wheat, regular all purpose flour can also be used same quantity
Add the sifted dry ingredients in three batches alternating with the milk.
Fold the dry ingredients till flour is well combined. Fill the Cupcake Liners till 3/4 to have a good rise.
Bake @180C preheated oven for 20-22 mins or till Golden
For a Marble flower Effect, Keep 2 tablespoon of the batter in a small bowl. Add cocoa powder and mix well. Add milk and mix well. Transfer the chocolate batter to a piping bag with a small cut.
Once the vanilla batter has been filled in the cases, Pipe few thin lines using the chocolate batter. Run a toothpick across them to make a swirl. Bake them @180C preheated oven for 20-22 mins or till Golden