Ingredients
o 1 cup cake flour (not self-rising), plus more for pan
o 1/2 teaspoon baking soda
o 1/4 teaspoon baking powder
o 1/4 teaspoon salt
o 1/8 teaspoon ground cinnamon
o Ground cloves
o 2 very ripe bananas, 1 mashed (1/2 cup), 1 very finely chopped (1/2 cup)
o 1/4 cup buttermilk
o 1/2 teaspoon pure vanilla extract
o 2 ounces (4 tablespoons) unsalted butter, softened, plus more for pan
o 1/2 cup dark-brown sugar
o 1 large egg
Preparation
- Preheat oven to 350 degrees. Butter a 9-inch round cake pan. Line with parchment cut to fit, and butter and flour parchment. Sift flour, baking soda, baking powder, salt, cinnamon, and a pinch of cloves into a medium bowl. Whisk mashed banana, buttermilk, and vanilla in a small bowl.
- Beat butter and sugar with a mixer on medium speed until smooth. Add egg, and beat until well combined. Reduce speed to low, and add flour mixture in 2 additions, alternating with banana mixture. Add chopped banana, and beat until well combined. Pour batter into pan, and use a spatula to spread into an even layer.
- Bake until golden brown and a tester inserted in the center comes out clean, about 20 minutes. Let cake cool in pan on a wire rack for 10 minutes
