Good-Cooking - Peanut Butter Banana Bread

Ingredients

• 2 1/2 cups all-purpose flour
• 1/2 cup granulated sugar
• 1/2 cup packed brown sugar
• 1 tablespoon baking powder
• 3/4 teaspoon salt
• 1/4 teaspoon ground cinnamon
• 2 large, ripe bananas, mashed (1 cup)
• 1 cup milk
• 3/4 cup chunky peanut butter
• 3 tablespoons vegetable oil
• 1 teaspoon vanilla extract
• 1 egg , slightly beaten
• Chocolate pieces