Take a pan add puree & sugar
Stir it counties till sugar melts,

When the puree leave the pan & it's consistency become thick. We can see the bubbles, now add lemon juice.

Stir continues until sugar stick with the bottom of pan.we can check it to drop it on a plane surface if the drop do not move jam is ready.

Seeds is optional but I like some crunch in the mouth.use it as you wish.

Put it in to refrejater for long time consume.