Elderflower Cordial

This last month we have been harvesting our elderflowers and making lots of elderflower cordial. We have been putting batches in the freezer also so that we can enjoy this refreshing drink all through the summer...and maybe on into the winter where its delicious made with hot water.
Based on a Sarah Raven recipe.

Makes 2 x 750ml bottles
Ingredients

1.3 kg sugar
15-20 elderflower heads
2 lemons
30g citric acid

Put 1.15 litres of water and the sugar in a saucepan, and dissolve the sugar completely before bringing to the boil. Remove from the heat immediately.
Thinly slice the lemons into a large bowl or jug. Add the citric acid and pour over the hot syrup and flowers. Cover loosely. Leave for 24 hours. Strain into warm sterilised bottles and seal. Will keep in fridge for a couple of months.