Rinse Currents in hot water, drain and dry on a towel. Cream butter until fluffy, add sugar and spice and cream thoroughly. Beat egg yolks until thick and creamy; add to butter mixture and blend well. Add one half of the flour and mix until smooth; add remainder of flour and mix until smooth again. Mix in stiffly beaten egg whites. Pour into 2 paper lined loaf pans (9 inchx4 inchx2.5 inch) and bake at 350�F for 1 hour and 25 minutes. Test for doneness by inserting a toothpick in center.