Heavenly Banana Pecan Cake - Hey Recipe

Ingredients

• 4 tablespoons unsalted butter (at room temperature, plus more, to taste, for greasing the pan)
• 1 cup cake flour (not self-rising, sifted, plus more, to taste, for dusting the pan)
• 1/2 teaspoon baking soda
• 1/4 teaspoon baking powder
• 1/4 teaspoon salt
• 1/4 teaspoon ground cinnamon
• ground cloves (to taste)
• 1 very ripe large banana (mashed, plus more, to taste, sliced, for topping)
• 1/4 cup buttermilk
• 1/2 teaspoon pure vanilla extract
• 1/2 cup dark brown sugar (firmly packed)
• 1 large egg
• 1/3 cup pecans (toasted and chopped)
• confectioners' sugar (to taste, for dusting)
• sweetened whipped cream (optional, to taste, for serving)