Rinse the cilantro gently under cold water
Shake off excess water
Pat the leaves and stems dry with paper towels or a clean kitchen towel
Spread the cilantro in a single layer on a dry towel or baking sheet
Let it air-dry for several hours until no moisture remains
Use a salad spinner to remove water faster, if desired
Hang small bunches upside down in a dry, well-ventilated area
Dry in a dehydrator at low temperature until crisp
Dry in an oven on the lowest setting with the door slightly open
Check that the cilantro is fully dry before storing
Store dried cilantro in an airtight container away from heat and light