There are many types of edible fiddleheads around the world. However, the fiddleheads in my area are the furled fronds of a young ostrich fern. Fiddleheads feel like such a Mainer thing, but as I read more about them, I realized we share the ostrich fronds find with Canada. The Maliseet, Mi'kmaq, and Penobscot peoples of Eastern Canada and Maine traditionally harvested fiddleheads, and they remain a traditional dish in these regions. I still say it's a Maine thing, meheheh. Just let me have this moment.
Fiddleheads have a short season—really only a few weeks in the spring—so when you see them at the Farmer's market or at your grocery store, GRAB 'EM!
I also just learned from good ol' Wikipedia that "when picking fiddleheads, it is recommended to take only half the tops per plant/cluster for sustainable harvest. Each plant produces several tops that turn into fronds; repeated over-picking will eventually kill the plant. Maintaining sustainable harvesting methods is important in the propagation of any non-farmed food species."
This is a great tip, as I still have yet to harvest my own (I feel like such a poser). When I finally do harvest my own fiddles, I picture Paul Bunyanesque lumberjacks surrounding me and knighting me as a true Mainer.
Until then, I will continue whipping up these "crunchy, yet satisfying" fiddles as if they were my own harvest, and enjoying this fleeting delicacy of spring!