Preheat your oven to 350°F (175°C). Grease a 9×5-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, mix together the melted butter, eggs, vanilla extract, buttermilk, and crushed pineapple until smooth.

Combine the wet and dry ingredients together and mix gently until barely combined.

Pour the batter into the prepared loaf pan and smooth the top.

Bake for 55 to 60 minutes, or until a toothpick inserted comes out clean.

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