Step 1

Wash the rhubarb and cut off the ends. Roughly chop the rhubarb and add it to a medium-sized saucepan along with the water.

Step 2

Bring to a boil then simmer for around 20 minutes or until the liquid has reduced by half. The rhubarb will look very mushy and the water will be pink.

Step 3

Remove from the heat and strain the liquid through a sieve into a bowl. Use a spoon to squeeze as much liquid from the rhubarb as you can. Discard the rhubarb.

Step 4

Wash the pan then return the liquid to it along with the sugar.

Step 5

Put the pan back over the heat and stir continuously until the sugar has dissolved. Simmer for a few minutes until the liquid looks like the consistency of syrup.

Step 6

Add a funnel and strainer to the mouth of a bottle then strain the syrup into it.

Step 7

Cool before using.