Pack your pitted dates real tight in a Mason type glass jar.
Pour the water right over, cover and let soak overnight.
Alternatively, you could cover loosely with a non-reactive lid and pop in the microwave for about 2 minutes. You don't want to cook the dates or even heat them up. You only want to get them nice and soft.
After the dates have soaked or have been softened in the microwave, transfer the entire content of the jar, including the water, to the bowl of your food processor.
Add vanilla extract and salt and process for 5 - 8 minutes or until really smooth and creamy.
Transfer back to the glass jar and place in the fridge where it will keep for about 3 months.