Add Ground Coffee (1 cup) together in a large bowl.
Add Water (4 cup).
Cover and refrigerate for at least 12 hours (or up to 24 hours).
Then remove the bowl, and place a strainer covered with a cheesecloth in a second bowl. Pour the coffee (and ground) over the strainer.
Wait a minute or two until the liquid has filtered through the strainer. Discard the grounds and remove the strainer.
Serve the coffee over iced, stirring in water to dilute the coffee at a 1:3 or 1:2 coffee/water ratio.
Serve with your favorite coffee add-ons and enjoy!