Let's Learn About The Use of Kumquats

Kumquats are often eaten raw. As the rind is sweet and the juicy centre is sour and salty, the raw fruit is usually consumed either whole—to savour the contrast—or only the rind is eaten. The fruit is considered ripe when it reaches a yellowish-orange stage and has just shed the last tint of green.

Culinary uses include candying and kumquat preserves, marmalade, and jelly. Kumquats can also be sliced and added to salads. In recent years kumquats have gained popularity as a garnish for cocktail beverages, including the martini as a replacement for the more familiar olive. A kumquat liqueur mixes the fruit with vodka or other clear spirit.

Now you know.

http://en.wikipedia.org/wiki/Kumquat