Bring shortening, sugar, molasses and vinegar to boiling. Cool and add egg. Add sifted dry ingredients; mix well. Chill.
Roll on lightly flowered surface. Cut to any desired shape. Bake on greased cookie sheet in moderate oven (375 degrees) for 12 to 15 minutes. Makes 2 1/2 dozen cookies.
Use this recipe for Gingerbread Men!