Traditional Wassail - Don't Forget the Eggs!
Most look as though they have adequate info to actually construct, so if you're looking for an interesting beverage to serve on Christmas Eve, you might consider the very old school. What they lack in appeal they gain in authenticity.
Many drinks in the “spiced heated ales” tradition feature eggs: here’s a typical mulled ale recipe:1 pint of strong, lightly hopped ale
3 tablespoons of sugar
Quarter-teaspoon of nutmeg or ginger
1 tablespoon of rum or brandy
Beat the eggs, sugar, spices and spirits together in a two and a half pint jug. Heat the ale in a two and a half pint saucepan almost to boiling. Pour the hot ale into the egg mixture from a great height (to prevent the egg curdling). Rapidly pour the now creamy liquid from the jug to the pan and back in a long stream several times. Serve.