Combine ingredients in a large pitcher and chill. Stir before serving. Serve in punch cups and top each serving with nutmeg.
For a booze-free mocktail:
Omit the whiskey and add ½ teaspoon rum flavoring, instead.
To create a beautiful cocktail glass, spray the bottom of glass mugs with a quick spritz of nonstick coconut oil spray, then sprinkle with cinnamon. Tap glass upside down to remove any extra cinnamon. Add cocktail ingredients to glass and enjoy!