how to make ume sour

The umes are back in season, so get yourself down to the supermarket and pick some up. If you go later on at night, you might even get them reduced. This year I have had a go at making ume sour and if you fancy having a go too, here’s how I did it.

I followed the above recipe which came with one of the jars. I doubled the amounts because I got 1000g of umes.

Gather the necessary items (1kg ume, 1kg rock sugar, 800-1000ml vinegar (I used apple) and a 3 or 4 litre container) ...