Marbled Banana Bread

Ingredients (11)

• 3 very ripe bananas
• 1/2 cup sugar
• 1/4 cup unsalted butter, melted
• 2 large eggs
• 1/2 cup buttermilk
• 1 teaspoon vanilla
• 1 1/2 cups all-purpose flour
• 1 1/2 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 2-3 ounces bittersweet chocolate