In mixing bowl, cream together butter and just 2 cups of the sugar.
Add in eggs one at a time, mixing well after each addition.
Combine together the flour, baking soda, baking powder and 1 tsp of cardamon and add to creamed mixture alternately with the milk.
In another small bowl, combine together remaining sugar and remaining cardamon. Dip round teaspoonfuls of the dough into sugar mixture and place on greased cookie sheets.
Bake at 375 degrees F for 10 to 12 minutes or until just lightly browned.
Allow to cool on wire racks.