Add powdered sugar and maple syrup to a small bowl. With a spoon, stir to combine.
Once your loaf of banana bread has fully cooled, pour the maple glaze over the loaf, spreading gently with the back of a spoon.
Notes
Maple Syrup: Use real maple syrup, not pancake syrup if possible.When adding the maple glaze to a sweet bread, like banana bread, ensure the bread is fully cooled before adding the glaze. If the bread is still warm, the glaze will melt and slide off the top of the bread.