In a large bowl, whisk together the all-purpose flour, sugar, baking powder, baking soda, and salt.
In a medium bowl, whisk together the melted butter, buttermilk, eggs, and vanilla extract. Mash the very ripe banana until smooth and stir it into the wet ingredients.
Pour the wet mixture into the dry ingredients and stir just until combined; small lumps are fine—do not overmix. Fold in the chopped macadamia nuts.
Heat a large nonstick skillet or griddle over medium heat and lightly grease it with butter.
Use a 1/4-cup measuring cup to portion batter onto the hot skillet, leaving space between pancakes.
Cook each pancake until bubbles form on the surface and the edges look set, then flip and cook until cooked through and golden; reduce the heat if pancakes are browning too quickly before they are set.
Serve the pancakes warm with butter, banana slices, and maple syrup.
Notes
Notes
A little cinnamon can be added for extra flavor.