Cover jujube dates with water and soak overnight. Cover with wet cloth to keep dates submerged in the water.
Place rehydrated dates in Instant Pot or pressure cooker. Add sugar and 1 cup water. Cook at high pressure for 7 minutes. Natural release 10 minutes then quick release pressure. Let dates cool.
Remove pits from dates. Place in a food processor with any remaining liquid. Process until smooth. Strain pulp. This should yield about 11 ounces of jujube date puree/jam.