Preheat oven to 350 degrees. Line 2 baking sheets with parchment paper, if using, or leave them ungreased. Put extra white sugar in a shallow bowl for coating the cookies later.
Beat sugar and butter with electric mixer in a large bowl until smooth and creamy. Beat egg and molasses into creamed butter mixture just until mixed in, about 30 seconds.
In separate bowl mix together all the dry ingredients. Gradually stir the flour mixture into the butter mixture by hand, until it just comes together and forms a batter with no flour remaining.
Roll out tablespoon sized amounts of dough into small balls with your hands.
Roll each ball in the white sugar to lightly coat. Place on baking sheets about 2 inches apart.
Bake until tops are rounded and slightly cracked, and edges are slightly browned, about 10 minutes. (Do not overtake or they will be hard). Cool on baking sheet for 1 minute before removing to a wire rack to cool completely.