Rum Piloncillo Syrup

• 2 (6-ounce) cones piloncillo, grated
• 1 cup water

Combine the piloncillo, water, rum, star anise, canela, clove, and anise seeds in a pot. There should be just enough liquid to cover the sugar. Bring to boil, reduce to a simmer, and cook until the liquid reduces to a syrup consistency, 7 or 8 minutes (see headnote), and set aside. Let the spices steep in the liquid as it cools completely at room temperature, about 1 hour, then st