Blend all ingredients using a regular or an immersion blender until smooth but still thick. (Don't over-blend as the mixture could get too runny.) Taste test and add more sweetener, if you wish.
Store in an airtight container in the freezer for 4 hours, scoop, and enjoy. Alternatively, you can freeze for 24 hours and use a Creami machine, if you have one. The ice cream will be powdery after one run, so add a splash of water or milk and respin to get a creamy consistency.
Top with a drizzle of melted dark chocolate and pistachios if you wish or enjoy as is :)
