Cool down this summer with our homemade rhubarb cordial

There's nothing quite as refreshing as a glass of rose-pink cordial on a hot day. Head Gardener Ned's recipe for rhubarb and orange flavoured cordial is easy to make and tastes absolutely delicious. Give it a try!
2kg rhubarb, trimmed and chopped into chunks
50g citric acid
1kg granulated sugar
Zest of two oranges
Place the rhubarb and orange zest in a large bowl and just cover with water. Add the citric acid and stir well.
Cover and leave for 48 hours.
Strain the rhubarb through a sieve. Put the strained liquid into a pan and add the sugar and orange juice. Heat gently and stir until the sugar has dissolved.
Bring to the boil and boil for five minutes. Pour into a sterilised bottle. Dilute before using.