Coconut Pecan Blondies

Bahan-bahan (12 porsi)

• ½ cup butter, melted (melted)
• 1 cup light brown sugar
• 1 egg
• 2 teaspoons vanilla
• 1 cup all-purpose flour*
• ¼ teaspoon kosher salt
• 1 cup shredded coconut
• ¾ cup chopped pecans
• ½ cup semi-sweet chocolate chips (OPTIONAL)
• ⅔ cup brown rice flour
• 4 tablespoons tapioca flour
• 3 tablespoons potato starch