Beat margarine at medium speed of an electric mixer until creamy; gradually add sugar, beating well.
Add molasses, lemon rind, and egg; beat well.
Combine flour and next 4 ingredients; stir well.
Gradually add flour mixture to margarine mixture, stirring well.
Divide dough in half.
Shape each half into a ball, and wrap in wax paper; chill 1 hour.
Shape each half into 18 (1-inch) balls.
Place 2 inches apart on cookie sheets coated with cooking spray.
Bake at 350° for 12 minutes or until golden.
Remove from cookie sheets, and let cool completely on wire racks.