Cinnamon Pecan Shortbread Bars

Bahan-bahan (18 porsi)

• 2 cups all-purpose flour*
• ¼ teaspoon cinnamon
• 1½ teaspoons baking powder
• ¼ teaspoon kosher salt
• ½ cup butter (room temperature)
• 1 cup sugar
• 1 egg
• ½ teaspoon vanilla extract
• ½ cup chopped pecans
• 3 tablespoons sugar
• 2 teaspoons cinnamon
• ½ cup chopped pecans
• 1 cup brown rice flour
• ¾ cup oat flour
• ½ cup tapioca starch
• ¼ cup potato starch
• ¾ teaspoon xanthan gum