Lemon Syrup

In a small saucepan with a tight-fitting lid, stir together the water and sugar until all of the sugar is moistened. Bring the mixture to a rolling boil, stirring constantly. Cover it at once and remove it from the heat. Cool completely. Transfer the syrup to a glass measure with a spout and stir in the lemon juice. If the syrup has evaporated slightly, add water to equal