Ingredients for about 2 cups:
2 generous cups sliced kumquats (measure after they have been quartered, seeded, and sliced into small pieces)
zest and juice of 1 lemon
small pinch cayenne
1 cup white sugar
1 cup cold water
1 star anise (I remove after 10 minutes of simmering)
– Note: You can just go by appearance, but I took the temperature right before it was done, and it was bout 215 F., so I imagine when I was finished it was around 220 F. You can also put a spoonful on a plate in the fridge, and test that way.