Pumpkin Blondies

Bahan-bahan (24 porsi)

• 1 cup unsalted butter (softened)
• 1 cup granulated sugar
• 1 cup brown sugar
• ⅔ cup pumpkin puree*
• 1 egg yolk
• 2 teaspoons vanilla extract
• 2 ¾ cups all-purpose flour (+ 2 tablespoons)
• 1 ½ teaspoon pumpkin pie spice
• ¾ teaspoon salt
• ¼ teaspoon baking powder
• 2 tablespoons granulated sugar
• ¾ teaspoons cinnamon