The day before making, freeze the necessary parts of your ice cream maker.
Blend all ingredients together in a high speed blender, using the tamp to help facilitate blending.
Pour the mixture into your ice cream maker and freeze using manufacturer's instructions. Store in a freezer-safe container. Before re-serving the ice cream, give it plenty of time to soften; cashew and coconut based ice creams tend to get quite firm, so allow yourself at least 30 minutes of thaw time.