Season the flour with salt, cayenne, and black pepper to taste. Add the soda water and stir to make a batter. Dip the fiddleheads in the batter, lifting them out with a slotted spoon. Fry in oil heated to 350°F for 3 to 4 minutes until golden and crispy. Season with salt and serve with Aioli (recipe follows).
Serves 15.
Aioli:
Crush the garlic with the salt and saffron using a mortar and pestle. In a medium bowl, put the garlic paste and whisk in the egg yolks and olive oil until incorporated. Add lemon juice and salt to taste. For a spruced-up aioli, use roasted garlic instead or add basil purée.
Makes 2 cups.
From Cooking Down East by Marjorie Standish