The inspiration for this is straight out of Heidi Swanson's new book Super Natural Cooking, which I'm just beginning to pluck my way through. I already want to try agave nectar and quinoa.
Her recipe is more of a recipe. Mine is more of a suggestion...
Make a big thing of plain black tea. I use four teabags to about a litre and a bit of water. Let it cool on the counter if you have the patience (this keeps it from getting cloudy so is really only an aesthetic thing).
When it's lovely and cold, pour into a glass full of ice, about 2/3 full and top the rest up with chilled peach nectar.
I have been drinking copious amounts of this stuff. Delicious and refreshing.