Cream together
margarine and sugar; add eggs, one at a time; add orange juice
and zest. In
a separate bowl combine dry ingredients and spices; mix into creamed
mixture and blend well; add chopped nuts.
Pour into
greased 18x26x1-inch baking sheet. Bake at 350 degrees F. for
20 minutes, or until bars are lightly browned and test done. Cool
in pan on wire rack.
Mix together
glaze ingredients; spread cooled cake with glaze.