But experts say that the underground market for gallbladders and other rare ingredients is flourishing.

The butter that shortens these canestrelli is a rare ingredient in Genoa's cooking.

Many recipes are quite elaborate and have rare ingredients so we may assume that they represent "Mediterranean haute cuisine".

Lutens is now also a perfumer, and his fragrances use rare ingredients from exotic locales like Morocco, where he lives.

Some of the rarer ingredients, such as fat choy and arrowhead, are generally only eaten at this time of year.

She may also order rare ingredients, like pearl extracts in a certain tone, from specialty manufacturers.

Wanmori, the seemingly simple souplike course, almost always offers the rarest ingredients.

Also called "whale's pearl" or "floating gold," ambergris is a rare and often valuable ingredient in fine perfumes.

Lastly, the Mets are having fun, an ingredient too rare in these parts in the past.

But it's also a liberating experience not to be constrained by rare and fickle ingredients.