Our wontons can be frozen but please do so in a single layer. Once frozen, you can pop them in a ziplock and they will keep well for a month. Cook from frozen by dropping them into a pan of boiling water. Once the water comes to a boil again, add an espresso cup's worth of cold water to the pan and let the water boil again. Do this twice more. This will make sure the filling is cooked without overcooking the skins.