1.Place cold water in 4 demitasse-cup capacity briki or small saucepan. Add coffee and sugar; stir over low heat until sugar dissolves. Slowly bring to the boil; remove from heat when froth almost reaches the top of briki.
2.Divide froth among 4 demitasse cups, then carefully fill the cups with remaining coffee mixture. Serve coffee immediately with a glass of cold water.
Brikis are available from Greek and Middle Eastern delicatessens. A demitasse cup holds about ¼ cup (60ml).Note