You can use any coffee you'd like for this, but my suggestion is Starbucks Iced Coffee (formally Taraza) Blend.
This next step depends on how you decide to make your coffee normally. I French press, naturally. Just add twice as much coffee beans as you would normally use and brew normally.
For French presses it's four minutes per round of coffee, I'll probably need two or three rounds to fill my pitcher.
Explanation of double batching.
Fill your pitcher half way with ice and pour the hot coffee over the ice until you have the amount you want!
Pour over ice. Add your favourite sweetener and top with milk! Enjoy on a hot day like today!