Clump several sprigs of rosemary together and wrap them with a rubber band.
To Oven Dry
Turn your oven to its lowest setting. Place rosemary on a baking sheet lined with a rack.ack off
Turn the oven off and place the rosemary in the oven.
Check rosemary after one hour. If the rosemary is not fully dried, (the leaves will be brittle), turn the heat back on at the oven's lowest setting. As soon as it's heated, turn the oven back off and leave rosemary in oven until dry and brittle.
To Dry in a Dehydrator
Place rosemary sprigs on a dehydrator tray.
Set the temperature to the lowest setting, around 95°F.
Keep the dehydrator going until the rosemary is fully dried. The leaves will be dry and brittle.
To Air Dry
Hang the clump upside down in an open area in your house. Try to select an area that is out of direct sunlight.
I hang mine in the dining room off of a hutch. The handle of the hutch is perfect for hanging and it's in an area that doesn't get bumped.
Hang until the sprigs are fully dried. Drying time will vary from a few days to several days.
Dried Rosemary
Once the rosemary is fully dried, remove leaves from stems and store in an airtight container at room temperature.
Notes
Don't overcrowd your rosemary on your baking rack or dehydrator rack. Leave a bit of space between each sprig.
If air drying, keep your bunch fairly small. Too large and the sprigs inside might not dry.
If you prefer, you can also leave the dried leaves on the stem. Just remove them when you're ready to use.
Dried herbs will slowly lose their fragrance over time. Try to use dried herbs within a year. They won't go back as long as they stay dry, but they may not have as much flavor.
Dried rosemary is more potent in flavor than fresh rosemary. Therefore, the recommended ratio to use in a recipe is 1 tablespoon of fresh rosemary to 1 teaspoon of dried rosemary.