Yes, frappés exist outside of Greek cuisine. But here, they're on a totally different level. Instant coffee is blended with a little water to make a foam, then topped with cold water and ice. It doesn't sound like much but it tastes incredible, and once you try it, you'll be ordering it every day. You'll be asked whether you want it sweet (four teaspoons of sugar), medium (two teaspoons), or plain (no teaspoons). You can also have it with evaporated milk, but it's creamy enough on its own.