Falernum

Heat the cloves, allspice, and star anise gently in a skillet to toast them.
While those are toasting, grate ginger into a heat-safe pint jar.
Add the sugar and water to the jar and stir.
Microwave the sugar mixture, stopping every 30 sec or so to stir, and watch closely so it doesn’t boil over.
Once sugar is dissolved, add the toasted spices, and set aside to cool.
Zest the limes.
Once the mixture is cool, add the zest and rum.
Put the lid on, shake, label, and let sit for about 24 hours.
After 24 hours, strain into a bottle.