Cinnamon Toast Bars

Bahan-bahan (18 porsi)

• 4 cups all-purpose flour*
• 2 cups sugar
• 4 teaspoons baking powder
• 2 teaspoons kosher salt
• 2 cups milk
• 1 tablespoon vanilla
• ¼ cup butter (melted and semi-cooled)
• 2½ cups brown rice flour
• 1 cup tapioca starch
• ½ cup potato starch
• 1¼ cups butter (melted)
• 1¼ cups sugar
• 1½ tablespoons cinnamon