Wash hands with soap and water.

Preheat oven to 350 °F. Mix flour, sugar, baking powder and baking soda in a large bowl.

Grate orange peeling, then squeeze juice from orange. Add additional orange juice to make 3/4 cup.

In a separate bowl, blend orange juice, butter, egg, and grated orange peel; add to flour mixture, stirring until just blended. Mix in cranberries and walnuts.

Pour batter into a 9x5 inch loaf pan, greased on bottom only.

Bake for 50 to 60 minutes or until a toothpick inserted in the center comes out clean. Cool in pan for 10 minutes; remove and cool completely on wire rack.