Many gluten free pie crust recipes use sweet rice flour (check your nearest Asian food store) and that might be a good substitute option as well. (glutenfreecookingschool.com)
You can substitute with sweet rice flour, but the cookies won't be quite as tender. (tastingtable.com)
Whisk together the soy sauce, sweet rice wine vinegar, sugar, sesame oil, ginger, and fresh garlic. (veganinsanity.com)