Homemade Espresso Martini

Bahan-bahan (1 porsi)

• 2 ounces vodka (I like Tito’s)
• 1 ounce cold brew concentrate or ¾ ounce freshly-brewed espresso
• ¾ ounce Kahlúa or coffee liqueur
• Optional maple syrup or simple syrup
• If using fresh espresso, garnish with 3 whole coffee beans