All you need is 3 lemons, 1.2 ltrs of boiling water, 250g of sugar.
First
cut the 3 lemons in to small cubes (make sure they are unpeeled!)
Second
put cut lemons and sugar in to a heat proof bowl, put the 1.2 ltrs od BOILING water on top.
Third
leave for 15 minutes
Fourth
taste. if too bitter add sugar, if too sweet, leave for longer.
Fifth
put in fridge until cool, add ice cubes and a slice of lemon when serving (some like it with mint leaves.)
This is the batch I just finished.
Love K