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, and salt until evenly mixed.
03 - In a separate bowl, whisk eggs, vegetable oil, orange juice, orange zest, and vanilla extract until smooth.
04 - Pour wet mixture into dry ingredients and stir gently just until combined; avoid overmixing to maintain tenderness.
05 - Fold in cranberries and optional nuts carefully to distribute evenly.
06 - Pour batter into the prepared loaf pan and smooth the surface evenly.
07 - Bake 45 to 55 minutes, or until a toothpick inserted in the center comes out clean.
08 - Allow bread to cool in the pan for 10 minutes, then transfer to a wire rack until completely cooled before slicing.