Try spreading prepared frosting between two cookies and sandwiching them together.
Directions
Beat the eggs, sugar, and brown sugar until fluffy in a large bowl. Add the vanilla, sour cream, melted better, and melted shortening. Mix well.
Mix flour, cocoa, baking powder and baking soda together in a separate bowl and gradually add to the sugar mixture. Stir in the chocolate chips. Stir in the nuts, if desired.
Bake on greased sheet at 325 degrees for 10-12 minutes, until just set. Remove from the oven and cool slightly before removing from pan.