Visually, they resemble diminutive oranges. But they technically aren't citrus. And unlike oranges, it is the thin skin that is sweet, while the flesh is sour.
You probably won't find bushels of them at the grocer, but most stores will have a few pints (they usually are sold in the same containers as cherry tomatoes) tucked away among the "strange" produce offerings.
And they are worth looking for. Here's why:
In a tiny (about the size of a large olive), bright orange package, kumquats pack a puckeringly intense sweet-tart flavour that complements both sweet and savoury dishes. They also make a mean cocktail.
Kumquats, which originated in China, are eaten whole — as in, skin and all. The seeds can be chomped, too. But that's a matter of taste.
I prefer to slice the kumquats in half and use the tip of the knife to pop out the seeds (it's easy). The halves are amazing drizzled with or dunked in a bit of honey.
Don't bother juicing them. Because the sweetness resides in the skin, you'll be disappointed. Better is to halve and seed one, then blend it into your smoothie. In general, the intensity of these flavour bombs means a little goes a long way.
Kumquats should be firm, but tender. They can be stored at room temperature for several days (their flavour is best at this temperature), or refrigerated for two to three weeks.
If you try kumquats fresh and find the skin is too tough, dunk them in boiling water for about 20 seconds, then place them in ice water to cool.
Oh, and the funny name? It comes from the Cantonese kin ku, which means "golden orange."
Kumquat and Red Onion Salsa on Baked Haddock
Start to finish: 25 minutes
15 ml (1 tbsp) all-purpose flour
250 ml (1 cup) panko breadcrumbs
5 ml (1 tsp) salt
625 g (1 1/4 lb) haddock fillets, divided into 4 pieces
1 medium red onion, quartered
1/2 jalapeno pepper (with seeds if you like it hot)
2 cloves garlic
125 ml (1/2 cup) loosely packed fresh cilantro
500 ml (2 cups) kumquats, halved and seeded
15 ml (1 tbsp) olive oil
15 ml (1 tbsp) honey
15 ml (1 tbsp) lemon juice
Salt and ground black pepper
Heat oven to 200 C (400 F). Coat a rimmed baking sheet with cooking spray.
In a wide, shallow bowl or pie pan, whisk together eggs and flour. In a second similar bowl or pan, mix breadcrumbs and salt.
One piece at a time, dip haddock in egg blend, turning to coat all sides, then dredge through breadcrumbs, patting them on to cover evenly.
Arrange haddock on prepared baking sheet. Spritz tops of fish with cooking spray. Bake for 12 to 14 minutes or until the fish flakes easily.
Meanwhile, in a food processor, combine onion, jalapeno and garlic. Process until chopped. Add cilantro and kumquats, then pulse to chop.
Transfer kumquat mixture to a medium bowl. Stir in olive oil, honey and lemon juice, then season with salt and pepper.
Serve haddock topped with salsa.
Makes 4 servings.
Nutrition information per serving (values are rounded to the nearest whole number): 410 calories; 70 calories from fat (18 per cent of total calories); 8 g fat (2 g saturated; 0 g trans fats); 190 mg cholesterol; 50 g carbohydrate; 35 g protein; 9 g fibre; 720 mg sodium.
J.M. Hirsch is the national food editor for The Associated Press. He is author of the recent cookbook, "High Flavor, Low Labor: Reinventing Weeknight Cooking." His Off the Beaten Aisle column also appears at FoodNetwork.com. Follow him on Twitter http://twitter.com/JM_Hirsch.