Place quartered apricots in a cocktail shaker and muddle until fruit breaks down into a pulp.
Add vodka, lime juice, and ginger syrup to the shaker. Fill with ice.
Shake vigorously for 15-20 seconds until well-chilled.
Strain mixture through a fine mesh strainer into a copper mule mug filled with ice.
Top with ginger beer and stir gently to combine.
Garnish with an apricot slice and fresh mint sprig.
Notes
Store-bought ginger syrup works well, but you can make your own by simmering equal parts sugar and water with fresh ginger slices.Fresh apricots give the best flavor, but during off-season you can substitute 2 oz apricot nectar.The copper mug helps keep the drink extra cold and adds to the traditional mule experience.Keep ginger beer chilled before mixing for the best fizz and flavor in the final drink.