4 lb. blood oranges, peeled and roughly chopped (remove any seeds)
1 c. granulated sugar
juice of 1 lemon
1 vanilla beans
1 Tbsp. vanilla
Place the orange pieces into a blender, and puree. Transfer the mixture into a large pot, add the sugar and lemon juice. Scrape the seeds from the vanilla pod and add them to the mixture. Add the pod and the vanilla extract.
Bring the mixture to a boil, then reduce the heat to medium. Simmer, stirring frequently, until the mixture reaches a soft ball stage (around 40 minutes). Remove the vanilla pod. Transfer the mixture to a wide-mouth mason jar.