3 cups all-purpose flour
1-1/2 tsp baking soda
2/3 cup margarine, room temperature
1-1/4 cups sugar
3 eggs or 6 egg whites, room temperature
1-1/2 tsp grated orange peel
1-1/2 cups buttermilk
1-1/12 cups finely chopped fresh or frozen cranberries, or cored and finely chopped tart apple