# What You’ll Need:
→ Dry Ingredients
01 - 2 cups all-purpose flour
02 - 1 teaspoon baking soda
03 - 1/2 teaspoon fine salt
→ Wet Ingredients
04 - 3 medium very ripe bananas, mashed (about 1 1/2 cups mashed)
05 - 2/3 cup granulated sugar
06 - 1/2 cup vegetable oil (or 1/2 cup melted unsalted butter)
07 - 2 large eggs, room temperature
08 - 1 teaspoon pure vanilla extract
→ Matcha Swirl
09 - 1 1/2 tablespoons culinary-grade matcha powder
10 - 2 tablespoons milk (dairy or non-dairy)
→ Optional Add-ins
11 - 1/2 cup chopped walnuts (optional)
12 - 1/2 cup dark chocolate chips (optional)
# Directions:
01 - Position a rack in the center of the oven and preheat to 350°F. Grease a 9x5-inch loaf pan thoroughly or line it with parchment paper, leaving an overhang for easy removal.
02 - Whisk the all-purpose flour, baking soda, and salt together in a medium bowl until evenly distributed.
03 - In a large bowl, mash the bananas until mostly smooth, then add the granulated sugar, vegetable oil (or melted butter), eggs, and vanilla; whisk until the mixture is homogeneous.
04 - Add the dry ingredient mixture to the banana mixture and fold with a spatula until just combined; stop when no large streaks of flour remain to avoid overworking the batter.
05 - Spoon approximately 1 cup of the prepared batter into a small bowl and stir in the matcha powder and milk until smooth and uniformly green.
06 - Spoon half of the plain banana batter into the prepared loaf pan, dollop half of the matcha batter over it, then add the remaining plain batter and finish with the remaining matcha batter.
07 - Run a butter knife or skewer through the batters in several figure-eight motions to create a marbled pattern; avoid excessive stirring to preserve texture.
08 - Place the pan on the oven rack and bake 50 to 60 minutes, rotating once if your oven heats unevenly; the loaf is done when a toothpick inserted into the center comes out clean or with a few moist crumbs.
09 - Allow the loaf to cool in the pan for 10 minutes, then lift it out using the parchment overhang and transfer to a wire rack to cool completely before slicing to maintain structure.
