Cream the butter. Gradually add the sugar, beating well at medium speed of an electric mixer. Add egg and molasses, beating well.
Combine the flour and the next 5 ingredients; add to the creamed mixture, mixing well, Stir in the chocolate morsels.
Drop the dough by heaping teaspoonfuls onto lightly greased cookie sheets. Bake at 350 degrees for 8 to 10 minutes. Let cool slightly on the cookie sheet; transfer to a wire rack, and let cool completely.