It’s hot, and I’m grumpy. Iced coffee helps. This is a remarkably easy way to make it at home, if you don’t feel like actually brewing coffee and then cooling it down. Cold-brewed coffee does have a slightly different taste than the regular stuff, but I liked it.
Grind 1/3 cup of coffee. Place it in some kind of receptacle (a French press would be ideal) and add 1 1/2 cups cold water. Cover and let rest at room temperature overnight (or for 12 hours). In the morning, strain it and dilute the coffee concentrate with milk and/or water (they suggest a 1:1 ratio of coffee to other liquid, but do what feels right to you). Serve over ice. These proportions yield enough for two cups of coffee.
Recipe via the New York Times.