Preheat oven to 350 degrees. Coat one or two muffin tins with cooking spray. Line the cups with cupcake papers.
In an electric mixer or using a hand mixer, combine all cupcake ingredients except eggs and whites. Beat well.
Add eggs and egg whites. Mix well.
Fill each cupcake cup just to the top. Do not mound or over fill.
Bake for 25-30 minutes until a toothpick inserted comes out clean. Let them cool before frosting. Bake remaining 6 cupcakes and cool.
To make frosting: Using a mixer, add powder sugar, cocoa, milk, butter, corn syrup and vanilla. Mix until smooth. It should be quite thick but easy to enough to frost.
Frost each cupcake with a light amount of frosting and decorate with a little mini chocolate chips.
Store covered on counter top or in the refrigerator. These cupcakes also freeze great.