Chop the fruit of choice into bite size chunks and add to a large thick bottom pot
Add the lemon juice and mash the fruit with a potato masher.
Add the date mixture and stir. To make the Date puree, take your soaked and pitted dates with the warm water and process in a blender or food processor until well mixed (you could substitute coconut sugar if you are ok with the refined sugar, but I love the added fiber from dates and the caramel notes it brings to the fruit layer).
Bring the pot to a boil over medium-high heat, being careful to stir the jam so it does not burn.
Turn the heat down to medium and let it cook for 25-30 minutes, stirring often to prevent burning.
Take the pot off the heat and let it cool. At this stage, if you prefer a smoother consistency, use an immersion blender. .