# Roast half of the granulated sugar
into a deep bowl by stirring it constantly by a wooden spoon.
# Meanwhile, boil 1 cup water into a separate pot.
# When the sugar
melts and turns to caramel (just before the boiling point), remove it from the stove. Pour 1 cup of boiling water on it. (Water splutters while poring it over, so you must be careful.)
# After mixing the caramel wit water, and when it cools down a little, add the remaining sugar
on in it and stir for a while more.
# Fill he mixture into a bottle, and refrigerate it.
# Fill half of the glass with mixture, and fill the remaining half of the glass with cold water. You can serve it with lemon
slice and ice.