Cut in butter until mixture is crumbly. then add the egg, orange peel, orange juice. Mix until mixture is evenly moist. Fold in light raisins, cranberries. Spoon into a greased 9 x 5 x 3 loaf pan bake at 350' for 1 hour and 10 minutes or until toothpick in center comes out clean.
Cool out of pan on a wire rack. Best if stored in aluminum foil.