Choosing your ginger beer
Ginger beer is the flavor engine here, so pick with intent. A spicy, dry ginger beer keeps the mule bracing and lets the tequila's oak show through. A milder, sweeter ginger beer makes it more crowd-friendly and dessert-adjacent, especially with the cinnamon syrup option. Ginger ale is not a substitute; it is far sweeter and less peppery, and it will flatten the drink.
Tequila mule vs Moscow mule vs Mexican mule
A Moscow mule uses vodka, which is neutral. Swap in tequila and you have a tequila mule, and when that tequila is Mexican and often paired with a lime-forward, sometimes spicy profile, it is called a Mexican mule. This recipe is all three, built on aged SWOL Añejo so it drinks warmer and more complex than the vodka original.
Copper mug or highball glass
The copper mug is traditional and it does more than look good: copper keeps the drink colder longer and accentuates the aroma of the ginger and lime. A highball glass works perfectly if you do not own mugs. Either way, use plenty of dense ice so the mule stays cold without watering down.
Batch it for a crowd
For eight mules, stir together 12 oz SWOL Añejo and 4 oz fresh lime juice in a pitcher and chill. Pour about 2 oz of the mix into each ice-filled mug and top with ginger beer to order so every drink stays fizzy. Set out candied ginger and lime wheels for self-garnish.
Make it a mocktail
For a zero-proof mule, skip the tequila, build fresh lime and a good spicy ginger beer over ice, and add a dash of agave for body. A drop of non-alcoholic aged-agave alternative or a splash of cold brew can mimic the oak note if you want it closer to the original.