Sift together flour, salt, baking powder, soda and sugar. Grate rind of the orange, extract the juice, and add 2 tablespoons melted shortening, or salad oil, and buttermilk to make 0.75 cup liquid. Beat egg well, combine with above liquid, and add to the dry ingredients. Add chopped nuts and raw cranberries, chopped or coarsely ground. Mix well. Pour in greased loaf pan. Bake 160ºC for 1 hour. Store 24 hours in refrigerator before cutting. Great for the holidays! Kay.