- Zest of 1 lime, removed in strips with a vegetable peeler
- 1/2 cup fresh lime juice
- 3/4 cup sugar
- 1/4 cup cold water
- 1/2 cup packed fresh tarragon leaves
- 4 Lady Grey tea bags
- 8 cups boiling-hot water
- Cut off any white pith from zest. Bring zest, juice, sugar, and cold water to a boil, stirring, then let stand, uncovered, off heat 15 minutes.
- Discard zest. Blend syrup with tarragon in a blender 30 seconds. Strain through a sieve lined with a dampened paper towel into a glass measure and cool completely.
- Pour boiling-hot water over tea in a heatproof pitcher and let steep 6 minutes, then discard tea bags. Cool tea completely.Stir syrup into tea and chill at least 1 hour and up to 6 (cover tightly). Serve over ice.