In a cocktail shaker, crush 6 fresh mint leaves, 1 tsp granulated sugar, and lime.
Add and shake with 5 oz (150 ml) sake. Strain liquid into a glass filled with ice.
Top with 1 oz club soda (2 Tbsp) and 1 sprig of mint.
To Make for A Crowd
Add sake, mint, sugar, and lime for the quantity of drinks needed in a blender. Pulse until coarsely chopped and just combined. Strain liquid into glasses and top each with 1 oz of club soda & a sprig of mint.