01 - Preheat oven to 350°F. Grease and flour a 9x5-inch loaf pan or line with parchment paper.
02 - In a large bowl, whisk together flour, sugar, baking powder, baking soda, salt, and cinnamon.
03 - In a separate bowl, whisk eggs, oil (or butter), buttermilk, vanilla extract, and orange zest until integrated.
04 - Pour wet ingredients into dry ingredients and stir gently until just combined, avoiding overmixing.
05 - Fold cranberries and pecans into the batter evenly.
06 - Transfer batter into the prepared loaf pan and smooth the surface with a spatula.
07 - Bake for 50 to 60 minutes, or until a toothpick inserted into the center comes out clean.
08 - Allow to cool in the pan for 10 minutes before transferring to a wire rack to cool completely.