Add the liquid into an ice cream maker and churn until frozen.
For freezer version:
Put into a freezer safe container and put in the freezer.
Every 30-40 minutes, use a spoon to mix the contents around. You are sort of mimicking what an ice cream maker does.
After about 2-3 hours, you will have hard ice cream but soft enough to serve! Your freezer temp may vary so it may take longer. Keep going until frozen.
Notes
If you don’t have a high speed blender, soak the cashews overnight to soften them. You can also boil them for 20-25 minutes if you forget. Another method is using a coffee or spice grinder to grind them dry (not soaking) into a very fine powder.
You can remove the coconut oil or sub with coconut butter if you don't use oil but the texture will change some.
You can adjust sweetness by adding more or less dates, I used 10 Medjool dates.