I came up with this after buying some meyer (sweet) lemons. It is basically water with a combination of meyer lemon juice and regular (sour) lemon juice. Sometimes I add a little Truvia. You don't need a sweetener but can add your sweetener of choice if you like. The amounts are very inexact and depend on your taste. I generally use the juice of one meyer lemon with a smaller amount of the sour lemon juice. I am giving the directions for one serving.