Preheat your oven: Set it to 350°F (175°C) and grease a 9x5-inch loaf pan or line it with parchment paper for easy removal.
Mash the bananas: In a large mixing bowl, mash the ripe bananas with a fork or potato masher until smooth, leaving a few small chunks for texture.
Mix the wet ingredients: Add the melted butter, eggs, vanilla extract, and sugar to the mashed bananas. Whisk everything together until fully combined.
Sift dry ingredients: In a separate bowl, sift together the flour, matcha powder, baking soda, and salt. This ensures an even distribution of the matcha and helps the bread rise evenly.
Combine the wet and dry ingredients: Gradually add the dry mixture to the wet ingredients. Stir gently until just combined—be careful not to overmix, or the bread may turn out dense.
Pour into the pan: Transfer the batter to your prepared loaf pan and spread it evenly with a spatula.
Bake: Place the pan in the oven and bake for 55-60 minutes or until a toothpick inserted into the center comes out clean.
Cool and enjoy: Let the banana bread cool in the pan for 10 minutes, then transfer it to a wire rack to cool completely. Slice and enjoy your homemade, moist matcha banana bread!