Do I have to use espresso?
No, but it is the easiest path to that classic flavor and foam. If you do not have an espresso machine, use very strong coffee like moka pot coffee or cold brew concentrate. Aim for something espresso-like in strength, and make sure it is chilled before shaking.
How do I get more foam on top?
Three things: (1) use fresh espresso, (2) shake hard for 15 to 20 seconds, and (3) strain into a chilled glass. Also, do not skimp on ice in the shaker. Plenty of ice helps the drink get cold fast and gives you better agitation while you shake.
Does fine straining reduce foam?
It can shave off a little volume compared to a standard Hawthorne strain, but it also removes ice chips for a smoother sip. If maximum foam is your top goal, try a Hawthorne strain only. If you want a tighter, silkier texture, fine strain.
Why does mine taste bitter?
Common culprits: espresso that is over-extracted or burnt, not enough sweetener, or using a coffee liqueur that leans very roasty. Add 1 to 2 teaspoons more simple syrup, and consider a tiny pinch of salt to soften harsh bitterness.
Can I make it without coffee liqueur?
Yes. Replace the coffee liqueur with 1/2 ounce simple syrup plus 1/2 ounce strong cold brew concentrate (or another 1/2 ounce espresso). The flavor is cleaner and less sweet, so taste and adjust.
Which coffee liqueur should I use?
They vary a lot. Kahlúa tends to be sweeter and lighter. Mr Black is more coffee-forward and less sweet. If your drink keeps coming out too sweet, the easiest fix is using a less-sweet liqueur or starting with less simple syrup.
Can I make it decaf?
Absolutely. Use decaf espresso or decaf cold brew concentrate. You still get the flavor and the foam, just without the extra buzz.
What is the best glass for an espresso martini?
A chilled coupe or martini glass. Cold glass helps the foam stay tight and pretty.
Is it actually a martini?
Not in the classic gin and vermouth sense. It is a vodka cocktail served up. The name stuck, and honestly, I am not here to fight it.