How much water to go with the 3/4 cup of sugar?

Hi Ying! I apologize that it wasn't included-- I'll see if I can fix that now. I use 2 tablespoons of water. You can definitely make it without (as Smaug said), but as a frequent caramel burner, I find that it makes it a little easier for me.

Maybe the author will show up, but it's probably not critical- many prefer to make caramel without water, which you'll have to boil off anyway.