It is hard to find black coffee in Greece, that's why there is Greek frappe (φραπές) on every corner!
How to prepare Greek frappe?
2 teaspoons instant coffee
2 teaspoons sugar
cold water
ice cubes
2 tablespoons milk
Place the coffee, sugar and 2 teaspoons cold water in a shaker, jar or blender. Cover and shake well for 30 seconds to produce thick, light brown foam.
Place a few ice cubes in tall glass. Slowly pour the coffee foam into the glass. Fill the glass with water, add milk if necessary. Serve the frappe with straw and glass of cold water! Enjoy!