Caviar

Caviar was a food item made from fish eggs.

Caviar was one of the foods the Britischer Freikorps provided to the Seventh Doctor at the Savoy Hotel during the time he posed as the Reichsinspektor General. (PROSE: Timewyrm: Exodus)

Jason Kane ate black caviar at a Fifth Axis buffet. (PROSE: Suffer the Children)

The Eleventh Doctor, Amy, Rory and Prince Boris ate caviar for breakfast. (PROSE: Dead of Winter)