INGREDIENTS
-2 cups flour
-½ cup sugar
-1 teaspoon baking powder
-½ teaspoon baking soda
-½ teaspoon salt
-½ teaspoon cinnamon
-8 tablespoons cold butter, cut into small pieces
-½ cup mashed banana
-2 tablespoons heavy cream
-1 egg, beaten
-1 tablespoon cream
-vanilla sugar (or table sugar)