This tea is surprisingly light and has a rich flavor. It has a little different edge to it than regular tea.

It's great hot or cold.
I snagged this recipe from The Splendid Table radio program blog

You'll need 2 dried limes and 4 cups of water.

With a mortar and pestle smash the two limes. They can also be smashed in a plastic bag with a meat cleaver or a rolling pin.
Add the smashed limes to 4 cups of water in a medium saucepan.
Bring to a boil, lower the heat and simmer for 4 minutes.

Line a mesh strainer with cheesecloth. Place over a bowl, and strain the tea.
Add sugar to the tea. I prefer agave syrup. This is added to taste.
Dried limes can be found at most any Middle Eastern Grocery store or on line. I highly recommend you get some, they are great in stews and other dishes.
Here's the recipe I snagged.
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Dried Lime-Omani Tea
beverages
2 dried limes
4 cups water sugar to taste
1. Break the limes into several pieces (you can use a mortar and pestle or put them in a sandwich bag and smack with a hammer.)
Combine the water and lime pieces in a small saucepan, bring to a boil over high heat, then reduce heat to medium-low and simmer for 4 minutes.
2. Remove from heat and strain through cheesecloth or a coffee filter.
Discard the solids. Add the sugar to the tea and stir until dissolved.
Drink hot or cool to room temperature and then refrigerate.
http://www.publicradio.org/columns/splendid-table/recipes/dried-lime-tea.html
** Exported from Now You're Cooking! v5.87 **
And that's that