Molasses Crinkles

I promised this recipe to Cindy M. This was a favorite recipe of my mother's. I don't know where it came from. I have tweaked it a bit.

Molasses Crinkles
3/4 cup unsalted butter
1 cup dark brown sugar
1 large egg
1/4 cup molasses
2 1/4 cup unsifted flour
1/2 tsp salt
2 tsp baking soda
1 tsp cinnamon
1 tsp ginger
1/2 tsp cloves
1/4 cup white sugar
Cream butter and sugar until fluffy, about 3 minutes in a stand mixer, longer with a hand mixer. Add egg and then molasses. Whisk all dry ingredients, except white sugar, together in a bowl and then add. Chill several hours or overnight. Shape into balls the size of walnuts, dip into white sugar, place on ungreased cookie sheet and flatten slightly with the bottom of a glass. Bake at 375° for 11 to 12 minutes.