Rinse and dry the cucumber. Slice it thinly, crosswise, into ⅛-inch slices.
Rinse and dry the lime. Slice it thinly, crosswise, into ⅛-inch slices.
Rinse and dry the mint sprigs.
Place the cucumber slices, lime slices, and mint sprigs in a 1-quart water pitcher.
Pour the water on top. Use a chopstick or the handle of a wooden spoon to gently stir.
Cover and refrigerate for one hour.
Serve with ice, if desired. Keep the water in the fridge, covered, for up to two days.
Video
Notes
This recipe doesn't contain significant amounts of calories, carbohydrates, protein, or fat. The nutrition info below is based on nutritionix.com.
Cucumber water tastes best when it's chilled, so I definitely wouldn't skip the step of chilling it. However, if you use chilled water in the recipe, you could let the flavors meld for about 20 minutes rather than a full hour.