This super simple to make - just boil 4 quarts of water in a tea kettle (this will take two rounds with a standard tea kettle) and pour into a heat resistant container. Add a few sprigs of mint, and 6 or 7 green tea bags. Let it brew for about a half hour. I know this seems like awhile, but you'll want it strong. After the tea has brewed, add a few cups of ice to bring it down to that refreshing temperature we all love. Pour into a glass and enjoy!
TIP: If you want to make this an adult beverage, you can add sweet tea vodka or just regular vodka. It tastes kind of mojito-ish, so rum might work as well.
WARNING:Do not pour the hot water into a glass container. The dramatic change in temperature will shatter the glass and you will have a dangerous mess to clean up. (Yes, I learned this the hard way and now my favorite pitcher is in the garbage in pieces.)