Preheat oven to 350 degrees Fahrenheit.
Grease a 9 inch loaf pan (or grease two smaller loaf pans, which is what I did). Tip: since I baked four at one time, I placed the loaf pans onto a baking sheet for ease of grabbing.
Stir and combine flour, salt, and baking powder in a large mixing bowl.
In a separate bowl, mix freshly-squeezed Sunkist® orange juice, melted butter, sugar, orange zest, and vanilla extract until smooth. Beat in eggs one at a time. Combine with dry ingredients and mix until well-incorporated.
Pour batter into the well-greased loaf pan(s).
Bake at 350F for 40-45 minutes; check doneness with a toothpick. If toothpick comes out of the bread clean, it is done. If it comes out unclean, allow the bread to bake for a couple more minutes.
Allow to cool, slice, serve, and enjoy!