Preheat your oven to 350°F (175°C) and grease a standard 9x5-inch loaf pan.
In a large bowl, whisk together the flour, baking soda, salt, and cinnamon.
In another bowl, beat the eggs, then stir in sugar, oil, and vanilla until smooth.
Add the undrained crushed pineapple and mix well.
Pour the wet mixture into the dry and stir until just combined—don’t overmix.
Pour the batter into the prepared pan and spread it out evenly.
Bake for 50–60 minutes or until a toothpick poked into the center comes out clean.
Let the bread cool in the pan for 10 minutes before transferring to a wire rack to cool completely.
Slice and serve plain or with a pat of butter if you're feeling indulgent.