If your dates are firm or dry, soak them in warm water for 5-10 minutes, then drain well.
Add dates, coconut milk, and vanilla (if using) to a blender or food processor.
Scrape down the sides as needed until smooth. Add a splash more coconut milk if you want a thinner caramel.
Transfer to a glass jar and refrigerate for up to 1 week, or freeze for up to 2 months.
