Coconut Lemon Sugar Cookies

Name: Coconut Lemon Sugar Cookies
Ingredients: 4 ounces sweet rice sorghum flour; 1 ounce stone ground garbanzo bean flour; 1 ounce finely ground tapioca flour; 1 ounce organic cane sugar; 1 ounce light brown sugar; 2 ounces unsweetened flaked coconut, crushed with hands; 1/2 teaspoon xanthum gum; 1/2 teaspoon baking powder; 1/2 teaspoon kosher salt; 4 ounces organic virgin coconut oil; 1/4 teaspoon vanilla extract; 5 drops liquid stevia; 1 heaping tablespoons lemon zest; 1 large egg; powdered sugar, for topping