This has to be the most divine cordial ever. I can never make enough of it. You just need a small amount in a glass topped up with water and you'll be in heaven. This is how one writer describes it. Words: Kristina Jensen “The famous cordial... has a unique, almost ethereal quality… suggestive of some mysterious fruit with hints of hay and summer meadows.” INGREDIENTS 20 large elderflower flower heads 4 lemons 1 tsp citric acid 1.5 litres water 1 kg sugar METHOD Zest the lemons, then roughly chop into chunks. Gently wash the flower heads and steep them