In a shaker, add the sake, gin, grapefruit juice, ginger, a tiny dash of ground nutmeg powder, if using, and 4-5 medium size ice cubes. Shake 30-40 seconds.
Pour the cocktail through a strainer filter into two cocktail glasses.
Add a splash of grapefruit sparkling water. Garnish with rosemary sprigs and grapefruit slice, if using.
Notes
You can use chilled or non-chilled sake as long as you have ice cubes ready.
My husband prefers to enjoy the beverage with an ice cube in the glass and I prefer not. It’s up to you. :)
Sake flavor profile and which one to use:
Junmai Nigori Sake (cloudy sake). I prefer this type of sake. I use either Kamoizumi brand “Summer snow” or Hakutsuru brand “Sayuri”
Junmaidaiginjo sake or ginjo sake (clear sake).
Nigori sake tastes milky, smooth, and a little sweeter.
Daiginjo and Ginjo sake taste very clean, drier, and less sweet than Nigori.
Why use Tropicana grapefruit juice: Tropicana grapefruit juice tastes naturally sweeter than fresh squeezed grapefruit juice. If you use fresh squeezed, you’ll need a touch of simple syrup to balance the drink.