Rock and Rye is a term for a bottled liqueur or mixed cocktail composed of rye whiskey and rock candy or fruit.
As early as 1914, United States government publications discuss disputes regarding beverages labeled "rock and rye", including a case of a beverage so marketed which was found by the Bureau of Chemistry to consist of "water, sugar, glucose, and artificial coloring matters, sold in imitation of a rock and rye cordial".
Among non-alcoholic beverages, Rock and Rye continues to be a popular flavor of the Faygo brand of soda pop.
Related products mentioned in the early 20th century include Rock and Rum and Rock and Gin.
Slow & Low produced by Hochstadter's since 1884 produces a Rock & Rye drink that according to the label is "served straight and as a proper old-fashioned since the 1800's Rock and Rye Union Made with Straight rye Whiskey Raw Honey, Navel Orange, Rock Candy and Bitters." It is 84 Proof Produced by Hochstadter's from Scobyville, NJ.