Preheat your oven to 350°F (175°C) and grease a 9x5-inch loaf pan.

In a large mixing bowl, whisk together the all-purpose flour, granulated sugar, baking powder, baking soda, salt, and shredded coconut.

In another bowl, combine the melted butter, eggs, vanilla extract, buttermilk, and crushed pineapple. Whisk until smooth.

Pour the wet mixture into the dry ingredients, stirring gently until just combined.

Transfer the batter into your prepared loaf pan and smooth the top with a spatula.

Bake for 55-60 minutes, checking for doneness with a toothpick.

Let the bread cool in the pan for 10 minutes before transferring it to a wire rack.