Remove the mint leaves from the sprigs, measure about 1 cup of packed leaves, and rinse them well.
Place water, sugar, and lemon peel into a small pot and bring to a boil.
Add mint leaves, reduce the heat, and cook for about 5 minutes.
Turn the heat off and let it rest for about 1 hour or until cool.
Strain through a fine-mesh strainer to remove mint leaves, pour into a glass bottle or a glass jar, and keep refrigerated.
