This drink is made differently than most coffees. You prepare it by boiling water with really fine, medium roast coffee grounds in a wide-bottom copper pot, without a filter.
As the coffee warms over the stove, a thick foam starts to form, which will be transferred to cup. You can then add the desired amount of sugar to each cup of coffee before it’s served. In Turkey, that’s often a lot of sugar. You have to ask for it to be less sweet, if you don’t want it that way.