Today is elderflower cordial day! Pick 25 heads of elderflowers on a warm sunny morning and shake to get rid of the tiny wildlife, then rinse. Put in a large bowl then add 2 chopped lemons, 3 chopped oranges, 2lb of sugar and 4 pints of boiling water, plus 2oz of tartaric acid. Cover and steep for four days, stirring whenever you remember, then strain and pour into plastic bottles. Keep one in the fridge then freeze the rest!