Place cider, cinnamon sticks, cloves and allspice in a large sauce pan. If using vanilla beans, split them, strip out seeds with a knife, then add seeds and pods to the pan. Bring mixture to a simmer.
Simmer until reduced to 1 ½ - 2 cups, about 3-4 hours. Strain, discarding solids, then return cider to pan. Add sugar and reheat, stirring to dissolve. Remove from heat. If using vanilla extract instead of vanilla beans, stir that in now.
Refrigerate until ready to serve.
To serve
Combine a shot (1 1/2 oz) of syrup with 1/2 - 3/4 cup of boiling water (to taste, depending on concentration of syrup). Add a shot of vodka or brandy if desired.
Stir. Garnsih with cinnamon stick, cranberries, rosemary if desired
Prevent your screen from going dark
Notes
Calories are without alcohol.
I am not a health professional and nutrition data is calculated programatically. Accuracy may vary with product selection, calculator accuracy, etc. Consult a professional for the best information.