This month, Gastro Obscura is sharing the recipes and stories behind amazing holiday dishes and drinks from around the world in the ongoing series “Home-Cooked Holidays.” On chilly nights during World War II, a potent elixir known as Moose Milk filled the stomachs and soothed the souls of Canadian soldiers. This rich batch cocktail usually appeared in quantities designed to sate a small army, leaving drinkers full, warm, and quite tipsy. Though there are many iterations, historic recipes for Moose Milk typically revolved around the core ingredients of liquor, cream,…