Mint-Cucumber Mojitos

1 lime, quartered

2 sprigs fresh mint leaves

1 tablespoon white sugar

2 slices cucumber

6 cubes ice, or as needed

2 ounces white rum (such as Bacardi®)

4 fluid ounces club soda

Squeeze the lime quarters into a highball glass, and drop the limes into the glass. Add the mint leaves and sugar. Muddle well with the back of a spoon or with a muddler. Place the cucumber slices into the glass, and fill with ice cubes. Pour in the rum, then top off with club soda. Stir gently and serve.