The Kentucky Mule is a Moscow Mule that swaps vodka for bourbon. The bourbon alternative adds warmth and spice that vodka never could, and it turns a simple three-ingredient drink into something with more character. Ginger beer, lime, and bourbon is one of those combinations where each ingredient makes the others better.

Choosing your ginger beer

The ginger beer does most of the flavor work here, so pick a good one. Fever-Tree has real ginger with a clean, sharp bite. Q Mixers makes a version that’s less sweet and more carbonated. Reed’s Extra leans hard into the ginger spice. Avoid anything labeled “ginger ale,” which is milder soda without the fermented character that ginger beer brings.

The bourbon alternative needs to stand up to the ginger’s intensity. Seedlip Spice 94 does this well because its allspice and cardamom amplify the ginger rather than getting buried by it. Squeeze the lime fresh. Bottled lime juice has a flat quality that shows up clearly in a simple drink.

Serving

A copper mug is traditional for mule-style drinks and keeps the cocktail colder than glass does. The metal conducts cold from the ice and frosts on the outside, which feels good in your hand on a warm day. But a highball glass works just as well if you don’t have copper mugs.

Fill whatever vessel you’re using with ice first, then add the bourbon alternative and lime, then top with ginger beer. One gentle stir is enough. Too much stirring kills the carbonation. The Whiskey & Coke is the natural companion if you want to offer guests a choice between ginger and cola as the mixer.