Line a cookie sheet with parchment paper and preheat oven to 375℉.
1 In a medium bowl cream coconut oil and sugar. Add egg and vanilla. In a separate bowl, sift together rice flour, tapioca, baking soda, baking powder. Slowly add dry ingredients to wet ingredients until just combined. (Add chocolate chips or chopped walnuts if desired.) Roll into 1" diameter balls. 2 Place cookies on prepared pan. Bake for 8-10 minutes. Let cool a few minutes before removing from cookie sheet.