I tried making these as the recipe I found, but they were very dry, so I added an extra egg white. The mini chocolate chips make it easier to distribute the chocolate widely.
- 1/4 cup butter, softened
 - 1/2 cup sugar
 - 1/4 cup brown sugar
 - 2 egg whites
 - 1/2 tsp vanilla extract
 - 1 cup all-purpose flour
 - 1/2 tsp baking soda
 - 1/4 tsp salt
 - 1/4 cup cocoa powder
 - 1/3 cup miniature chocolate chips
 
Mixer
2 bowls
Measuring cups.
Oven at 350
Procedure:
- Cream sugars and butter together using mixer. 
 - Add egg whites and vanilla. 
 - In a separate bowl, combine flour, cocoa, baking soda, and salt. 
 - Add dry ingredients 1/3 at a time, mixing thoroughly. 
 - Place on a greased cookie sheet 2 inches apart.
 - Bake for 8 minutes.