Here in the Test Kitchen, we have an affinity for tequila, so swapping out the vodka for tequila in a classic espresso martini felt like a no-brainer. Make sure to shake the cocktail well and use freshly brewed espresso to create the iconic crema on top of the drink.
In a cocktail shaker, combine the coffee liqueur, espresso, and tequila, then add a handful of ice. Cover and shake vigorously until chilled. Strain into a chilled martini glass. Garnish with the coffee beans and serve immediately.