
1) Russian cuisine
Found on
https://www.crosswordclues.com/clue/ossetra

Ossetra (also Oscietra, Osetra, or Asetra) caviar, is one of the most prized and expensive types of caviar, (eclipsed in price only by Beluga caviar). It is obtained from Ossetra sturgeon which weighs 50-400 pounds and can live up to 50 years. Ossetra caviar varies in color, from deep brown to gold. Lighter varieties are more sought after, as they...
Found on
http://en.wikipedia.org/wiki/Ossetra
No exact match found.