Mix sugar, butter, spices and molasses. Bring to a boil, stirring constantly. Cool to lukewarm. Add vinegar and eggs. Mix well. Add sifted flour and soda blending to a smooth dough. Chill. Roll out on floured board and cut with a 4 or 6 inch cookie cutter. Bake on an ungreased cookie sheet at 350 degrees for 10 minutes.