Banana Cake | 5 O'Clock Coffee Club

Ingredients

• 1 cup cake flour (not self-rising), plus more for pan
• 1/2 teaspoon baking soda
• 1/4 teaspoon baking powder
• 1/4 teaspoon salt
• 1/8 teaspoon ground cinnamon
• Ground cloves
• 2 very ripe bananas, 1 mashed (1/2 cup), 1 very finely chopped (1/2 cup)
• 1/4 cup buttermilk
• 1/2 teaspoon pure vanilla extract
• 2 ounces (4 tablespoons) unsalted butter, softened, plus more for pan
• 1/2 cup dark-brown sugar
• 1 large egg