My favorite way to make iced coffee is with an Aeropress. It’s a great, cheap method for making espresso at home. In my opinion, this espresso is the best base for iced coffee or iced lattes.
The other item that you need is a good Burr Grinder. A burr grinder will let you get the proper grind size for french press, espresso, drip maker, etc. I HIGHLY recommend a good burr grinder instead of a cheap blade grinder. Trust me, you WILL notice the difference in the taste of your coffee! I have found the small blade grinders to burn the coffee in the process of grinding, plus, the size is not consistent, which is a large factor in properly brewing your coffee.
To get started, I place either cold water or milk in a cup and load with ice cubes, then place in the freezer. This keeps the ice cubes from melting too much and gives the water/milk a chance to cool down even further before the hot espresso is poured in. Start with approximately 1/4 cup of water or milk per espresso shot, then adjust to taste. This recipe assumes you’ll be using two espresso shots, so use 1/2 cup of cold water or milk.
While the water/milk is chilling further, head up some water in an electric kettle. Something like this, with a thermometer is great. You want to get the water to about 175-185 degrees Fahrenheit for the Aeropress.
While your water is heating, set your grinder to fine/espresso setting. You’ll need two scoops of ground coffee, using the scoop that comes with your Aeropress. Place the two scoops in your Aeropress, add hot water, once ready, up to the number “2″ line on your Aeropress. Stir, then slowly, but steadily push down.
Now, pull your pre-chilled water or milk out of the freezer, pour in the espresso shots, stir, and enjoy!