Place unpeeled fruit in food processor and chop very roughly, place in medium/large saucepan.
Scrape the seeds from 2 vanilla pods. Add to fruit with the sugar, mix it all well and set aside for 30 minutes for the ingredients to get acquainted.
Put pan over medium heat and bring to boil, stirring constantly. Reduce heat, but keep to a slow boil, stirring regularly for 20 - 30 minutes.
Test jam for set - is set if a small amount placed on a cold (freezer cold) saucer wrinkles around the edges and doesn't run.
Place into sterile, hot jars, seal and label.