Glogg is essentially a warmed punch made with an infused distilled spirit such as vodka or aquavit as well as fortified wine -- that is, wine that's had extra alcohol added. The infusion needs to steep for a week, so factor that into any party plans.
This recipe is lovely and bright. It puts color in your cheeks. Leftovers can be stored in a glass jar in the fridge and reheated. The flavor mellows over time. A must for a cold winter night anywhere.