In order to make your Turkish coffee foamy (which is a must to achieve the proper taste) your coffee pot must be the right size. Thewater level in your pot needs to be some where close to the middle of your pot (or at least about 1/2 to1 inch below the rim). This off course will depend on how many cups of coffee you are makingand the size of your pot.
One solution is to get a set of Turkish coffee pots and be prepared for all occasions; or you can use the following chart as a guide: