Start by removing the stem and the ostiole from the fig. Then cut them into small pieces.
Off heat, place figs in a large (nonreactive) saucepan and add sugar. Stir sugar and figs together. Let the figs marinate off the heat for 30 minutes so they release their juices.
Turn on the heat to medium, and add the lemon juice, salt, and the seeds of a vanilla bean plus the whole vanilla bean to the mixture.
Bring the mixture to a boil.
Once boiling, reduce the heat to medium-low and bring to a simmer.
Mash the figs with a potato masher so that everything, especially the skins, incorporates together well.
Simmer mixture, stirring often for approximately 45 minutes to 1 hour and 15 minutes, or until it reaches a jam-like consistency. The cook time will depend on how juicy the figs are, and how strong your stove is.
Optional: You can remove any larger pieces of skin from the jam. Turn off the heat and add the jam to jars.
Let the jam cool. Once it cools, place in the fridge for up to 3 months.