Low FODMAP Shortbread - FODMAP Everyday

Ingredients

• 1 cup (158 g) white rice flour, (such as Arrowhead Mills)
• ½ cup (72 g) sweet rice flour, (such as Authentic Foods Sweet Rice Flour)
• ½ cup (69 g) sifted cornstarch
• 1 teaspoon salt
• ¼ teaspoon baking powder; (use gluten-free if following a gluten-free diet)
• ¼ teaspoon xanthan gum
• 1/2 cup plus 6 tablespoons (1 stick plus 6 tablespoons; 198 g) unsalted butter, (at room temperature, cut into pieces)
• ¾ cup (149 g) sugar
• 1 teaspoon vanilla extract
• Raw sugar
• Melted chocolate
• Toffee bits
• Coconut flakes
• Powdered food color & vodka