In need of a low-abv festive punch to serve at Christ Church East Bay's annual Lessons & Carols service in Oakland, we modified one of our favorites -- Mother's Ruin Punch -- by using Manzanilla instead of gin and punching it up with a bunch of bitters. Based on how quickly the crowd guzzled down all 120 servings, the punch was a huge success. The recipe below serves 20, but you can easily multiply the proportions as needed if you're serving a larger crew.