- Preheat the oven to 350° F.
- Coat a loaf pan with cooking spray.
- In a large bowl, combine the flours, sugar, salt, cinnamon, and baking soda. Add the egg, cranberry sauce, and walnuts, and mix just until moistened (mixture will be dry and take effort to mix). Pour into the prepared pan.
- Bake for 1 hour, or until a wooden pick inserted in the center comes out clean. Cool for 10 minutes in the pan.
- Remove to a rack, and cool completely.