Quinberry cake was a sweet treat, a baked dessert that incorporated quinberries, also known as quint-berry fruit. These small berries grew on the quinberry shrub, a plant indigenous to the world of Romin. The quinberries were also squeezed to make a very sugary drink, called quin- or quint-berry juice, a much-loved drink of the Romin.
During the Jedi mission to Typha-Dor in 25 BBY, Anakin Skywalker, a 16-year-old Padawan, overheard the renowned pilot Garen Muln use the name of the cake to illustrate the difficulty of an attack by four Vanqor starfighters as part of a military escalation aimed at invading a neighboring planet.
The following year, on a mission to Romin, Jedi Master Obi-Wan Kenobi sampled the extremely sugary beverage. This drink was a favorite among the local inhabitants. He tasted it at a lavish party for the planet's elite, thrown by the corrupt leader, "Great Leader Teda." Coincidentally, Kenobi also encountered, and then shared the same sugary beverage with, the criminal he was supposed to be impersonating while undercover on the planet.