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Ostrich fern fiddlehead season is generally no more than two weeks so many people want to know how to preserve fiddleheads (Matteuccia struthiopteris) for later use. Learning how to preserve this springtime vegetable will be a way to enjoy its flavour throughout the year. Always remember when you are working with fiddleheads, never eat them raw!
Fiddleheads can be cleaned by first placing them in a colander and thoroughly rinsing the them with clean, cold potable water. Submerging the rinsed fiddleheads in a bowl of clean, cool potable water should follow rinsing to remove the remainder of the brown sheath coverings, and repeat as needed. For short-term storage you must keep fiddleheads refrigerated until you are ready to cook or preserve them. They can be stored in the refrigerator, but should be consumed or preserved within a week or less for best quality.
Once you have properly cleaned your fiddleheads they can be safely cooked either by boiling or steaming. Sautéing and stir-frying ostrich fern fiddleheads are NOT recommended methods. Fiddleheads should be boiled or steamed prior to use in other recipes that call for sautéing, stir-frying or baking.
Bring lightly salted water in a saucepan to a rolling boil and add clean fiddleheads that are cleaned according to the steps above. The water should fully cover the fiddleheads when added. Bring the water back to a steady boil and boil for 15 minutes. It is recommended by professionals that cooking fiddleheads in small batches is important to allow enough water to thoroughly cook the fiddleheads
Bring a small amount of water to a boil preferably under a stainless-steel, vegetable steamer in a saucepan. Add cleaned fiddleheads and steam for 10 to 12 minutes with a lid covering the steamer and saucepan.
After boiling or steaming, serve at once with optional toppings or seasonings, such as melted butter, vinegar, olive oil, salt, pepper and any other spices you enjoy. Cooked and rapidly chilled fiddleheads can be also served as a salad with an onion and vinegar dressing.
Freezing is the most common and easiest way to preserve fiddleheads. Alternatively, you can make fiddlehead soup and freeze the soup. Steps to freezing fiddleheads:
- Clean fiddleheads thoroughly.
- Blanch small batches at a time by adding clean fiddleheads to potable water and boil for 2 minutes. The blanch time starts when the water comes to a rolling boil with the fiddleheads added. If the fiddleheads are packed too tightly, they won’t cook properly.
- Immediately cool for two minutes in an ice bath immediately after blanching. (An ice bath is made up of half ice and half water.)
- Drip dry fiddleheads in a colander (or spin dry in a salad spinner), then place fiddleheads into moisture and vapour-proof, freezer-grade containers or re-sealable plastic freezer bags. Do not over fill bags or containers.
- Label, date and place containers or bags in the freezer.
- When using frozen fiddleheads, thaw in the refrigerator or submerge the containers or bags in cold water until thawed, and then cook the fiddleheads using one of the methods above.
- Frozen fiddleheads can be immediately cooked without thawing.
Be sure to read Fiddlehead Safety to protect yourself from making any mistakes. Another recommended read is How to Harvest Fiddleheads.
if you add a teaspoon of vinegar to the water the fiddlelheads will keep their nice dark green colour
Nice to know!!
Thank you for the information. I am interested in freezing fiddleheads for later use. My yard has literally thousands of them and I’d like to extend them beyond their short consumption season.
With the emphasis in properly preparing them. Such as boiling them for 15 minutes before use I don’t quite follow the freeze section you mention. You indicate after cleaning they can be blanched for 2 mins.then Ice bath. Then drip dry and place in freezer bags to be frozen. From there you state any frozen fiddlehead can be immediately “cooked” without thawing. Does that mean no need for an additional 15min boil? Why, Since only a 2min blanch was done before freezing. Did the freezing process eliminate food poisoning concerns similar to how boiling does? If so that isn’t stated I your article.
Thank you In advance.
According to my research yes.