2000 years ago the Greeks so prized Lemon Balm, Melissa Officinalis, that they dedicated it to the goddess Diana and used it extensively as a medicine. There doesn't seem to be much that the powerful volatile oils can't help - in fact the common name for this herb was Cure All. It is especially beneficial for muscle and stomach cramps, urinary spasm, flatulence and nausea!
The vinegar during the two week soaking stage
Thinly peel the zest from 4 lemons and place in a heatproof jug with the leaves from 3-4 large stems of lemon balm, and the sugar. Crush the leaves so that they start releasing all of those lovely oils. Pour over the boiling water and stir to dissolve the sugar. Leave to one side while you squeeze the juice from the lemons - add this to your serving jug. Gather a few more small springs of lemon balm and add to this jug before straining over the cooled syrup. Top up with around 600ml/1 pint water of your choice and chill until needed. Add ice if desired. All I need now is a sunny day!
Try making the tea with fresh leaves when available, or use a couple of tablespoons of the dried in a pot-for-one . If you are restless or have trouble sleeping this is a wonderfully calming brew - but only have one as it is also a diuretic!