Place the strips of orange zest, cinnamon stick, cloves, juniper berries and black peppercorns into a square piece of doubled cheesecloth or a disposable teabag.If using cheesecloth, tie off the bouquet garni with a length of kitchen twine. If using the disposable teabag, seal the bag.
In a medium pot, over medium-high heat, combine Marsala wine, orange juice, bouquet garni and ginger. With a paring knife, carefully slice the halved vanilla bean lengthwise, exposing the seeds. With the back of the knife, carefully scrape the seeds from the pod. Place seeds and pod into the pot; stir to combine. Bring mixture to a boil. Lower heat and simmer; about 5 minutes.
Add the Redpath® Demerara Style Sugar, cranberries and salt.
Stir and bring mixture back to a boil. Reduce heat to medium and simmer; 12 to 17 minutes, or until the cranberries begin to pop. Stir often to prevent sauce from burning.
Transfer mixture to a bowl, discarding the bouquet garni and vanilla pod. Allow the sauce to cool completely. Cover and place into the fridge to chill until ready to serve.