Step 2: Mix the Dry Ingredients
In a medium bowl, whisk together the flour, sugar, baking powder, baking soda, and salt.
Step 3: Blend the Wet Ingredients
In a separate large bowl, combine the eggs, vanilla, mashed bananas (about 1½ cups), crushed pineapple including its juice, and sunflower oil. Whisk until the mixture is smooth and uniform.
Step 4: Combine Wet and Dry Mixtures
Gently fold the dry ingredients into the wet mixture, stirring only until everything is incorporated. Avoid overmixing.
Step 5: Add the Tropical Add-ins
Stir in the toasted macadamia nuts and the unsweetened coconut flakes.
Step 6: Bake the Bread
Transfer the batter to the prepared loaf pan and even out the top. Bake for 55–65 minutes, or until a toothpick inserted in the middle comes out clean.
Step 7: Cool and Enjoy
Allow the bread to rest in the pan for about 10 minutes before transferring it to a wire rack. Let it cool completely, then slice and serve.