2 c  Flour
2 ts Baking powder
1/2 ts Salt
1 2/3 c  Sugar
1/2 c  Butter
2    Eggs
1/2 ts Mint extract
2    Squares bitter chocolate,
-melted
1/3 c  Milk
1/2 c  Powdered sugar

Sift first three dry ingredients; cream butter, sugar, eggs and extract.
Add chocolate. Add dry ingredients alternately with milk. Divide dough in
half. Cover tightly and chill for 2 hours. Shape in 1 inch balls and roll
in powdered sugar. Bake at 350 for 12-15 minutes on greased cookie sheet.
These “crackle” during baking, so that the appearance is that of a
“cracked” surface with powdered sugar on the higher parts of the surface.