Wash your rhubarb stalks and chop roughly into one inch pieces.  There's no need to peel the rhubarb.

Place your chopped rhubarb pieces into your jar, and add the sugar.

Pour in the vodka, until all the rhubarb is covered. You'll end up with a fair bit of vodka leftover - that's ok - as long as the jar is filled to the top with vodka.

Give it a good shake until as much sugar is dissolved as possible, and then leave the jar in a cool dark spot for 4 weeks.  Give it a shake every now and again to help dissolve the sugar.

After four weeks sieve the mix into a bowl and discard the rhubarb (we tried to eat it.  In one word: don't!).  Decant the liquid into a sterilised bottle and enjoy responsibly!  Bottled up, it can last for around 12 months, meaning you can enjoy a taste of summer on the dullest darkest days of winter!