2 large glasses. Preparation time : 1 night. Difficulty: 2/5. Extremely refreshing summer drink.
Tasting suggestion: 1 part filtered coffee, 2 parts cold sparkling water, lots of ice cubes. Those who would enjoy a more indulgent treat may replace the ice cubes with a scoop of vanilla ice cream.
Handy tip: Any tiny fault in the coffee you choose will be detected more easily when drunk cold than when drunk hot – so make sure you select very high-quality coffee to drink cold-brewed.