Coconut Cookie Bars

Bahan-bahan (16 porsi)

• 1 cup butter (melted)
• 2 cup light brown sugar
• 2 large eggs
• 1 tbsp vanilla
• 2 cups all-purpose flour*
• ¼ tsp kosher salt
• 2½ cups shredded sweetened coconut (divided)
• 1⅔ cups dark, bittersweet, or semi-sweet chocolate chips
• 1⅓ cups brown rice flour
• ⅓ cup tapioca starch
• ⅓ cup potato starch