For a non-alcoholic version, simply omit the rum. The punch is delicious and festive without it! Adjust the amount of brown sugar to your liking, depending on the sweetness of the fruit. If you can't find Mexican hawthorns (tejocotes), you can substitute with crabapples or another firm, slightly tart fruit. The punch can be made ahead of time and reheated gently before serving. The flavors will meld together even more beautifully!