The Samarian sunset was a beverage which initially appeared clear, but when the rim of the glass was tapped sharply, a swirl of orange and gold luminescence appeared in the liquid and streamed out to fill the glass, until the entire drink turned a dull non-luminescent gold.
Samarian sunsets were a favored drink of Cardassian professor Natima Lang, who stopped drinking them after she and Quark had a falling-out, since they reminded her of him. Despite that, when they met again on Deep Space 9, Quark made her one. (DS9: "Profit and Loss")
In the Star Trek Online mission "Night of the Comet", the drink is mentioned by Montgomery Scott who describes it as having a sour taste and being very weak, likely referring to the drink containing a very low amount of alcohol.