Banana Pecan Buttermilk Pancakes

Name: Banana Pecan Buttermilk Pancakes
Ingredients: 2 cups flour; 2 1/2 teaspoons baking powder; 1/2 teaspoons baking soda; 2 tablespoons sugar; 1/2 teaspoon salt; 1 1/2 cups buttermilk; 2 large eggs; 6 tablespoons butter, melted; 1/2 teaspoon vanilla, or to taste; 2 very ripe medium bananas (about 12 to 14 ounces); 2/3 cups pecans, toasted lightly and chopped; Softened butter or vegetable oil, for cooking the pancakes; Berry-Maple Syrup, recipe follows; 1 1/2 cups pure maple syrup; 1 cinnamon stick; 1 cup picked over berries, such as blackberries or strawberries, stemmed and halved or raspberries or blueberries