This drink, chosen by chance, is ~2 oz rum, ~1/2 oz vermouth, ~3 oz soda water, 2 dashes Peychaud's bitters. It's got a fortifying feeling and might be just the thing to get you ready before heading into battle. Think of it as that buff that the cleric always has to ask the DM to retcon, because we all know the character would have thought to cast bless before now. Something like a dry version of a Palmetto- https://www.diffordsguide.com/cocktails/recipe/3298/palmetto-cocktail