Preheat oven to 350 degrees. Spray a 8 1/2 x 4 1/2 loaf pan with cooking spray and set aside.

In a large bowl, whisk together the flour, salt, and baking powder. In a small bowl, combine sugar and orange zest. Rub together with your fingers until fragrant. Whisk into the flour mixture. Set aside.

In a separate bowl, combine the buttermilk, oil, eggs, orange juice, and vanilla.

Slowly add the wet ingredients to the dry ingredients. Stir until just combined. Fold in the cranberries. Pour batter into prepared loaf pan.

Bake 70-75 minutes, or until toothpick comes out clean.

Remove bread from oven and let cool for 15 minutes. Loosen sides with a knife, and carefully remove from pan.

Once bread has completely cooled, make the orange glaze. In a small bowl, combine powdered sugar, orange juice, and orange zest. Whisk until smooth. Drizzle the glaze over the bread. Cut and serve.