This is a perfect recipe if you're wondering what to do with all those slightly over-the-hill, bruised, juicy to bursting point plums! The best part about it is that it's a two-fer: you make one recipe and end up with two things!
Pit the plums with your fingers and toss them into a saucepan or soup pot, you may smush them in the process of getting the pits out, which is fine. When they're all in there, add the sugar and turn on the heat (add less sugar at first, you can add more later). If it's dry ad a little water. When it's simmering, turn it down and let it simmer for 15-20 minute After it's cooled a bit, scoop the plum mixture into a colander that's resting inside a large bowl. Strain the mixture and pour the syrup into bottles. Keep refrigerated for up to one month!
To Make the Barbecue Sauce.
Slice the onion and caramelize it in a little oil. Take the plum solids that are left behind in the colander and combine them with the caramelized onions, habaneros and salt in the blender. Blend till smooth. Use the sauce on pork ribs, tofu and whatever else your heart desires.