From its London origins to its modern cocktail revival, bartenders and coffee experts share the secrets to making the perfect Espresso Martini at home.

Add Yahoo as a preferred source to see more of our stories on Google. Understanding how to make espresso is the first step in enjoying espresso-style beverages at home, like an Americano or a Latte.

"The latte you'd get in a good coffee shop is usually made with a ratio of 2 ounces of espresso to 8–10 ounces of hot milk, with a light layer of foam on top," sayss Kat McCarthy, (SCA AST), ...