On the Menu Today~ Banana Walnut Sourdough Scones. Delicious!! Banana Walnut Sourdough Scones Ingredients 2 1/2 cup flour 1 cup oatmeal 1/3 cup packed brown sugar 1 tablespoon plus 1 teaspoon baking powder 1/2 teaspoon salt 1/2 teaspoon baking soda 1/2 teaspoon allspice 1/2 cup butter, cold and cubed 1 egg, lightly beaten 1/3 cup milk 2 bananas, mashed 1/2 cup sourdough