Step 1

Add the ice, cold-brew espresso concentrate, Kahlua coffee liqueur, vodka, and simple syrup to the cup of a cocktail shaker.

Step 2

Shake vigorously for 15 to 20 seconds or until your espresso martini is nice and frothy.

Step 3

Slowly pour, while straining out the ice, the espresso martini into a 6-ounce martini glass.

Step 4

Garnish with 3 whole coffee beans if desired.