Step 1.
- Chill a martini glass by filling it with ice water.
Step 2.
- In a cocktail shaker, combine 2 ounces of sake, 1 ounce of cold brewed coffee, and 1/2 ounce of simple syrup.
Step 3.
- Add ice to the shaker and shake vigorously for about 15-20 seconds.
Step 4.
- Discard the ice water from the chilled martini glass.
Step 5.
- Strain the mixture from the shaker into the martini glass.
Step 6.
- Garnish with a single coffee bean on top.