Taste Test: Kumquat

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A kumquat is one of those things that I always admire at the produce section of the supermarket but never buy. I love the burst of sweet-and-sour-with-a-spicy-kick goodness that this tiny citrus fruit with the beautiful shiny orange skin adds to almost anything. But a part of me doesn't want to cook with it — maybe I'm afraid the novelty will wear off.

Kumquat marmalade
Thinly slice 24 kumquats and 2 oranges. Measure how many cups they add up to, then put them in a large pot. Add 3 cups of water for each cup of fruit, and let it sit overnight. The next morning, bring the mixture to a boil, then reduce heat & simmer until the rind is tender. Measure the cooked fruit. Add 1 cup of sugar for every cup of fruit mix. Add the juice of 2 lemons, and boil again, stirring occasionally. The mix should eventually turn into gel at about 220F; when it does, remove it from the heat and take the foam off of the surface. You're done! Just put the mixture into jars, seal, refrigerate, and enjoy.

Source: AllRecipes.com

If you do decide to bring kumquats into your kitchen, you'll find that they're pretty versatile. You can eat them raw, cooked, candied, pickled, or as a marmalade. Even just tossing a few peels of the rind can add a ton of flavor to anything. They also last a few weeks in the fridge, so you'll have some time to contemplate and experiment — but you better get them quick because they're a mid-winter fruit, and spring is just around the corner. My favorite rendition of kumquat was on white fish, sea bass it might have been, at some fancy restaurant in San Francisco. So tasty.

Kumquats are full of vitamin C and potassium; in Japan, it is called kinkan, also the name of a popular over-the-counter drug brand that makes remedies for sore muscles, sore throat, and mosquito bites.

Kumquats were originally found in China, but have made their way to Japan, Europe, and North America; Dade City, Florida even has a Kumquat Festival every winter to celebrate its harvest.

Every installment of Taste Test will explore recipes, the science, and some history behind a specific food item.

Image via Miss Meister's Flickr tracking

40 Comments Add a comment

robcat2075 #1 9:08 AM Friday, Mar 12, 2010 Reply

The Japanese have a drug for mosquito bites?

willy359 #2 9:12 AM Friday, Mar 12, 2010 Reply

"I don't even bring 'em home anymore. I just sit there laughing and they go to waste." - G. Carlin

betatron #3 9:22 AM Friday, Mar 12, 2010 Reply

I love kumquats, buy them whenever i run across them. Besides being yummy, they're lots of fun to share. I have the best luck finding them in Korean grocery stores.

toolbag #4 9:23 AM Friday, Mar 12, 2010 Reply

I dig 'em. Although it is a little odd eating a whole citris fruit peel and all. Someone should GM oranges to have the same tasty peel!

GuyInMilwaukee #5 9:33 AM Friday, Mar 12, 2010 Reply

The jealousy sets in... via Twitterverse

xenijardin
My friend @seanbonner and I are about to have breakfast with @DieAntwoord. Eggs, Zef Side up.

Comatose51 #6 9:36 AM Friday, Mar 12, 2010 Reply

I used to put a few of them in my pockets when I go running and eat one every couple of miles. The citrus taste and sweetness gives a good boost, at least mentally. They're quite convenient to carry. The problem though is that they're seasonal so I couldn't rely on them year around when I go running.

DeadWriter #7 9:53 AM Friday, Mar 12, 2010 Reply

I love them sliced and in ice water. It's also a great "kid" sized tree, as it grows slow. I remember picking them as a kid and sort-of claimed the tree as my own.

There are other quats, leading me to the question what makes a "quat" as in "loquat", "kumquat" and "limequat"?

That lead me to this
The English name "kumquat" derives from the Cantonese pronunciation gam1 gwat1 (given in Jyutping romanization; Chinese: 金橘; pinyin: jīnjú; literally "golden orange"). The alternate name 柑橘, also pronounced gam1 gwat1 in Cantonese (gān jú in Mandarin, literally "large tangerine orange") is now more commonly written by Cantonese speakers. Or maybe it comes from "kim quật".
from answers.com

mtreighie #8 9:57 AM Friday, Mar 12, 2010 Reply

Juice em and use the juice to make kumquat-curd (like lemon-curd, only 12 times tastier).

maralenenok #9 10:00 AM Friday, Mar 12, 2010 Reply

I just picked some up at Trader Joe's this week. I love the rind - fragrant sweetness after initial bitterness - but the pulp was really sour. I feel like I've had a much sweeter kumquat before, so maybe these weren't ripe enough? Anyway, I candied the ones I got and they turned out spectacular. They also have tons of pectin, because the syrup set up like a mofo.

utahred #10 10:01 AM Friday, Mar 12, 2010 Reply

I lived in Southern California for many years, and there was a beautiful Kumquat tree in the back yard. My wife and I didn't use them for anything but a Chinese neighbor did, and she would come over every year and pick the tree clean. In return, she would give us a lacquered box of loose leaf Oolong tea; we still have the boxes. The tea, sorry to say, is long gone.

RedMonkey #11 10:06 AM Friday, Mar 12, 2010 Reply

I'm with George Carlin, I can't say the word without giggling like a school girl.

Ugly Canuck #12 10:10 AM Friday, Mar 12, 2010 Reply

What of Mr Muckle's kumquats?

http://www.youtube.com/watch?v=e5AjSGrZbxw

Kumquats!

Anon #13 10:27 AM Friday, Mar 12, 2010 Reply

Can't believe nobody's mentioned the fact that there's two very different types of kumquats. The most popular kind is what everyone here is familiar with and is available in stores, grocery stores, and most farmer's markets (albeit seasonally as noted). When I was a kid in Florida, we had a kumquat tree and it's fruit wasn't sour like all the ones I tasted after I grew up. It took me many long years (well, at least until the internets came around) to find there is a type called Meiwa which isn't the tart/sour bomb we all know and love. It's fruit is quite lovely, not sweet like an orange, but not sour like a lemon either. Hard to find and very seasonal. I eventually found a friend back in Florida who's parents have a tree in their backyard. I now collect my yearly fill from them when I visit for the holidays. The trees are available from specialty fruit tree vendors and run about $75-$100. A great gift idea I'd say!

piminnowcheez #14 11:17 AM Friday, Mar 12, 2010 Reply

Man, some good ideas here in the comments. Kumquat curd, mmmm.

Getting good ones makes a big, big difference. The kumquats I used to eat off our trees in Florida: food of the gods. Every kumquat I've ever bought in a grocery store in the northeast: not food at all.

Anon #15 11:24 AM Friday, Mar 12, 2010 Reply

I had amazing freeze-dried kumquats in Switzerland once. I really wish I could find them in the US.

Anon #16 11:56 AM Friday, Mar 12, 2010 Reply

The famous kumquat scene in "It's A Gift", still cracks me up today. "I want kumquats!!"

Here 'tis:

http://www.youtube.com/watch?v=j2Av8CCSzgc

Anon #17 2:58 PM Friday, Mar 12, 2010 Reply

I've read and believed that Kumquats are not citrus, although a quick check shows mixed results.

jackdavinci #18 3:08 PM Friday, Mar 12, 2010 Reply

They taste like 3000 oranges squeezed into the size of a grape...

Tavie #19 5:39 PM Friday, Mar 12, 2010 Reply

My mouth started watering the instant I saw the picture. It's been too long since I've snacked on kumquats.

Anon #20 8:56 PM Friday, Mar 12, 2010 Reply

My favorite way to eat Kumquats is Kumquat pie. It is very similar to a key lime pie, but with kumquats. It is the most popular thing at the Dade City festival (which is where I got hooked on it). The recipe for it is online at the kumquat growers website.

Chef Jeff #21 11:22 PM Friday, Mar 12, 2010 Reply

Key West Shrimp and Kumquats

Into a large sauteuse over medium high heat add 2 tablespoons of olive oil. 1 tablespoon of fresh crushed garlic and 1 teaspoon of kosher salt. Sauté the garlic for 20 seconds.

Add one pound of peeled and deveined large Key West Pink Shrimp -16/20 count. Sauté the pinks until they are semi opaque.

Add two tablespoons of butter and a dozen Kumquats that are washed, stem scar removed and cut in half on the bias to the shrimp. Sauté the Kumquats for 1 minute.

Toss in ½ dozen fresh scallions cut thin on the bias and flame with 2 oz. of Grand Marnier.

Serve the Key West Shrimp and Kumquats overtop slices of fresh mango.

xdmag #22 2:18 AM Saturday, Mar 13, 2010 Reply

I've got a tree in my back yard. Besides marmalade, here's something for you to try:
1 lb kumquats. punch holes in them with a fork.
1 lb sugar
1 lb vodka
Put in a pickle jar, put it in a cool dark place. Stir daily until all the sugar melts. Remove the kumquats after 4 weeks - they are perfect to eat with some vanilla ice cream.
Let the liquor age 2-3 additional months. Enjoy.

gobo replied to comment from xdmag #23 8:16 AM Saturday, Mar 13, 2010 Reply

I'll need to find a damn big pickle jar to hold a pound of vodka, a pound of sugar, and a pound of kumquats! How much vodka's in a pound, anyway?

Anon #24 11:40 AM Saturday, Mar 13, 2010 Reply

I can't believe that nobody's commented yet on the way to tell if kumquats are ripe! If they float high in fresh water, they're ripe; if they start to sink, they're not ready to be consumed.

Mia MacHatton replied to comment from gobo #25 11:59 AM Saturday, Mar 13, 2010 Reply

I think the saying is "A pint's a pound the world around." So figure slightly more than a pint for a pound of vodka.

Chef Jeff #26 12:05 PM Saturday, Mar 13, 2010 Reply

"A pint is a pound the world around"

Most cook know, using the Avoirdupois system, "A pint is a pound the world around" – as it relates to water. The specific gravity of water is 1 and Skyy Vodka is .9498.

So a pound of Skyy Vodka is about a pint plus 1 tablespoon and 1 teaspoon.

xdmag #27 12:12 PM Sunday, Mar 14, 2010 Reply

I apologize for using your strange imperial units. It's actually 500 grams of each ingredient.
Also, @gobo - I have such a pickle jar, it's not that big.

SamSam replied to comment from xdmag #28 8:26 PM Sunday, Mar 14, 2010 Reply

I would assume that you could even use 174.9 grams of every ingredient, and it would still come out tasting exactly the same. You'd have less of it though.

This could possibly have been made easier by just saying "1 unit each of...", although I guess then you'd need to specify that you want a unit of weight, not volume.

Anon replied to comment from robcat2075 #29 9:29 PM Sunday, Mar 14, 2010 Reply

That's same name and pronunciation but the medicine means "Gold Crown" = 「金冠」. The fruit is "Gold Citrus" = 「金柑」.

thedivineclementine #30 1:17 PM Tuesday, Mar 16, 2010 Reply

Here in Argentina we call them Kinotos and they are often made into a jam and mixed with a shot of whiskey to make ice cream.

Anon #31 9:39 PM Wednesday, Mar 17, 2010 Reply

Slice 'em fine, add to yogurt, possibly with some granola. Yum!

Anon #32 7:27 AM Thursday, Mar 18, 2010 Reply
Anon replied to comment from gobo #33 10:07 AM Friday, Mar 19, 2010 Reply

a pint. 8 pints = 1 gallon=8 lbs

Anon #34 7:29 AM Monday, Mar 22, 2010 Reply

Kumquats are also grown in Greece (the only place in Europe where they are cultivated). Here is my recipe for a Greek kumquat spoon sweet: http://greekgourmand.blogspot.com/2008/05/kumquat-sweet-for-your-thoughts.html

Enjoy!

Rose Queen #35 1:49 PM Friday, Apr 2, 2010 Reply

I just finished making kumquat, apple & grapefruit marmalade from Christine Ferber's book, Mes Confitures, and it's one of the most delicious jams I've ever made.

Anon #36 2:40 AM Saturday, Apr 3, 2010 Reply

Don't know about the Japanese, but in the US there are diphenhydramine and hydrocortisone topical itch/allergy treatments (usually a gel and ointment, respectively). Plus any oral allergy med should work (although diphenhydramine/Benadryl seems especially effective -- and cheap, in the form of a 100-capsule bottle from Wal-Mart).

(Disclaimer: As the boxes say, you shouldn't take diphenhydramine orally and topically at the same time. Also, I'm not a medical professional -- you should take any medical advice I may give with a grain of salt.)

Anon #37 5:44 AM Saturday, Apr 3, 2010 Reply

The best way to consume Kumquats - put three or four in the bottom of a tall glass, crush, add ice, gin and soda water. Enjoy on a nice warm summers day.

dhalgren #38 10:33 AM Tuesday, Apr 13, 2010 Reply

All you fancy pants silly recipes. I remember as a kid here in California my mom was nutty for Kumquats. I haven't even heard the word mentioned since my parents died 8 years ago and to hear it now brings back great mouth watering memories. My dad and I would sit at the kitchen table and gobble those things down. Great fun.

Anon #39 3:17 PM Friday, May 21, 2010 Reply

I love Kumquats but can not find them in any local fruit store or supermarket be it Morrison's or my local fruit shop.
So can any person tell me where I can buy this PLEASE.

Anon #40 6:30 PM Monday, Jun 21, 2010 Reply

re: not citrus
Definitely a citrus. Originally known as "Citrus japonica", the common (Nagami) kumquat was reclassified as "Fortunella margarita" due to minor differences in floral structure. The round Meiwa sort is a different species, "Fortunella crassifolia." There are two other delicious species, but they are generally unavailable outside of their native habitats (Hong Kong and southern Japan).
re: Kinoto
Kinoto appears to be a variant of the word "chinotto", which rather than being a kumquat is yet another sort of citrus, a small, round form of bitter orange, "Citrus x aurantium var myrtifolia" (http://en.wikipedia.org/wiki/Chinotto). It provides the flavor for both Campari aperitif and the famous San Pellegrino mineral water product.

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