Cranberry Orange Bread

I enjoy making these for family and house guests to a quick breakfast. They can also be put into greased muffin tins at 375 degrees for 15 mins.
 * 2 cups flour
 * 3/4 cup sugar
 * 1 1/2 teaspoons baking powder
 * 3/4 teaspoon salt
 * 1/2 teaspoon baking soda
 * 1/4 cup butter, cut into small chunks
 * 3/4 cup orange juice
 * 1 tablespoon grated orange zest
 * 1 egg, beaten
 * 1 cup chopped cranberries
 * 1/2 cup chopped walnuts (optional)
 * 1) Preheat oven to 350 degrees F (175 degrees C). Grease a 8 1/2×4 1/2-inch loaf pan.
 * 2) Combine flour, sugar, baking powder, salt, and baking soda in a bowl. Stir butter into flour mixture until combined. Add orange juice, orange zest, and egg; mix well. Fold in cranberries and walnuts. Spoon batter into the prepared pan.
 * 3) Bake in the preheated oven until a toothpick inserted into the center comes out clean, 60 to 75 minutes. Cool in the pan for 10 minutes before removing to cool completely on a wire rack.