• 2 ½ cups all-purpose flour
• 1 teaspoon baking powder
• ½ teaspoon ground cinnamon
• ½ teaspoon fine sea salt
• 1 cup lightly packed brown sugar
• ¾ cup unsalted butter (softened)
• 1 teaspoon pure vanilla extract
• 1 tablespoon unsalted butter (room temperature)
• 2 cups powdered sugar (sifted)
• ½ teaspoon pure vanilla extract
• ½ teaspoon maple extract
• sparkling sugar for sprinkling (optional)