Sunburst Lemon Bars

Bahan-bahan (18 porsi)

• 1 cup butter (softened)
• ½ cup powdered sugar
• 2 teaspoons lemon zest
• 2 cups all-purpose flour*
• 4 eggs
• 2 cups sugar
• ¼ cup all-purpose flour ((use brown rice flour for GF alternative))
• 1 teaspoon baking powder
• 5 tablespoons fresh lemon juice
• 1 tablespoon lemon zest
• 1 cup powdered sugar
• 2 tablespoons lemon juice (plus more as needed)
• 1⅓ cup brown rice flour
• ⅓ cup tapioca starch
• ⅓ cup potato starch