Preheat a large nonstick electric griddle to medium heat. In a large pie pan or mixing bowl, whisk together eggs, eggnog, nutmeg and vanilla extract.
Melt one tablespoon of butter on griddle. Dip each side of slice in eggnog mixture, lightly shaking off excess and place on griddle. Cook until golden brown on both sides.
Serve with warm maple syrup, whipped cream and sugared craberries, if desired,