One of the first recorded recipes incorporating Seville oranges is the roasted duck in bitter orange sauce of Marie-Antoine Carême, the 18th century's answer to a celebrity chef. Cornish hens are just as tasty as and less fussy to roast than ducks.
Because of their extremely short season, Seville oranges can be hard to find. If you can't locate any, you can make these recipes by substituting equal parts fresh lemon and sweet orange juice.