Café cubano is traditionally brewed in a stovetop Moka pot using finely-ground Cuban coffee. Serve your drink in a small cup, also known as a tacita, and top it with a distinctive light brown froth, called espuma! This layer, made with whipped sugar and espresso, is a version of the crema found on typical shots of espresso.
Fill the base of the Moka pot with water. Add finely-ground Cuban coffee to the filter insert. Level it off, but don’t pack it down. Attach the filter basket to the pot and screw the top section of the pot to the bottom section.
Heat the Moka pot over medium heat. If it heats up too fast, it will brew too quickly and won’t capture the full robustness of the coffee.
Add two tablespoons of sugar to a creamer or small bowl. This will produce a very sweet coffee, but you can adjust the amount of sugar depending on your taste.
Make the espuma. As soon as the coffee starts to fill the pot's upper chamber, remove it from the heat and pour an ounce or two into your creamer. Return the pot to the stove and whisk the espresso and sugar mixture vigorously. You want the sugar to dissolve and a light brown foamy layer to form on top.
Once your coffee finishes brewing, remove the pot from the heat. Pour the coffee into your espresso cup. Top with the espuma and serve!