Combine all of the ingredients for the frozen espresso martini, then pour them into a shallow metal pan and put it into the freezer.
2.0 ounces espresso or strong coffee, 1.5 ounces vodka, 1.0 ounces coffee liqueur, 1.0 ounces Baileys Irish cream, 0.5 ounces simple syrup
After about 30 to 45 minutes, use a fork or silicone spatula to scrape the frozen bits of cocktail off the sides and bottom of the pan. Return the pan to the freezer.
Repeat every 30 to 60 minutes or so, scraping the outside of the pan, until the whole mixture is made of fine crystals.
When ready to serve, chill a coupe or martini glass. Stir one last time and gingerly scoop the frozen espresso martini mixture into your glass.
Garnish with chocolate covered espresso beans, if desired, and serve.
3 chocolate covered espresso beans