What is the preferred garnishing for a Brown Cow / King Alphonse cocktail?

The preferred garnishing for a Brown Cow / King Alphonse cocktail is considered to be "None." This cocktail combines ingredients such as espresso, milk, and coffee liqueur, which create a rich and creamy profile. The absence of a garnish allows the flavors of the drink to take center stage, allowing for an unadulterated tasting experience.

In some cocktail traditions, certain drinks may forgo garnishes in favor of simplicity or to highlight the ingredients directly involved in the drink itself. In this case, while other choices like whipped cream or nutmeg could potentially complement the flavors due to their rich and aromatic qualities, they are not standard garnishes for this cocktail. Thus, choosing "None" aligns with the classic presentation of the Brown Cow / King Alphonse, underscoring the focus on the drink's inherent flavors without additional adornment.