Deceptive graphic, this; a real kumquat is only about 3-4cm in diameter. (An inch and a bit in the old currency).
I have always called them cumquats but I see most Google entries have them as kumquats. Being as they are Chinese in origin, any English name is just a stab in the dark anyway.
My cranberry post got a bit of curiosity on cumquats happening so I thought I would enlarge on them.
There are a number of varieties. The ones I am familiar with are a 'squashed ball' shape, like a tiny mandarin. (And in the pic above). Others I have seen on line are oval or pear shaped.
They are almost inedible raw. Not impossible, as legions of small school boys have proved their right to manhood by eating one raw, but not the way of choice. Contrary to most citrus fruits, the skin is okay, it is the flesh that is very tart.
I have a long association with them - my Granny had a big one in the centre of her front garden. Well, I remember it as big. I now have one in our driveway (below), trimmed to keep it away from the car.
They have a very intense flavour and so usually do a supporting role.
My recipes for them include:
Cumquat brandy, a liqueur.
Cumquat cordial, I have done a lemon/orange/cumquat blend to acclaim.
Cumquat marmalade, but I prefer an orange/cumquat blend, 75:25.
Pear & cumquat tart
Cumquat and cardamon syrup cake.