Easily rivalling any coffee house concoction, this thirst-quenching cooler makes the perfect afternoon pick-me-up.
For a sweeter sipper, try stirring in 1 tsp (5 mL) agave nectar or maple syrup.
Per serving:
In small bowl, place matcha, and with fork or small whisk, gradually whisk in about 1 Tbsp (15 mL) hot water until a smooth paste forms. Gradually stir in remaining hot water and set aside to cool to room temperature.
To blender, add cucumber and blend until liquefied, about 1 minute. Into measuring pitcher or bowl, strain liquid through fine-mesh sieve lined with cheesecloth. You should have about 1 cup (250 mL) cucumber juice. Discard solids remaining in strainer.
In large Mason jar or pitcher, add mint leaves and mash with wooden spoon until well bruised. Stir in lime juice, cucumber juice, and matcha tea until very well combined. Refrigerate for at least 1 hour.
When ready to enjoy, fill 4 tall glasses with ice, extra mint leaves, and a couple of lime wedges and cucumber slices. Into glasses, strain chilled matcha mixture through fine-mesh strainer, filling each glass about a third full. Discard any solids remaining in strainer. Top with soda water and serve.