In a large bowl, sift together flour, baking soda and spices.
In a medium bowl, cream butter and sugar together, then add egg, molasses, salt and orange rind.
Mix well and stir into dry ingredients.
Form dough into a ball shape and wrap in plastic wrap and chill overnight.
Preheat oven to 375 degrees.
Roll out to 1/4-inch thick on floured surface.
Cut into desired shapes and place shapes unto ungreased cookie sheets and bake at 375 degrees for 8-10 minutes until lightly browned around edges.
Transfer to wire racks to cool.
Note: Dough will keep up to one week, refrigerated and cookies can be stored up to 3 weeks in cookie tins.