Taken from Tami Kramer Nutmeg Notebook
Pit the dates and place them in a bowl, cover with boiling water and let soak for at least 30 minutes to an hour to soften dates. How long to soak will depend on how moist the dates are. The dryer they are the more soaking time they will need.
Drain dates reserving soaking water.
Place soaked dates in the work bowl of a food processor fitted with the S blade, or in high speed blender, add 1 cup of the reserved soaking water and process until smooth., stopping to scrape down the sides when needed. Add more water if it needs to be thinner.
I keep in a 3/4 cup jar in the refrigerator and freeze the remaining in similar amounts
Use in sweet or savory recipes.