Chef Stephen Kalt, owner of New York City's Spartina restaurant, warns to take special care when preparing the sauce: Stir it constantly to assure that the eggs cook evenly; if chunks form, strain before serving.
Line a baking sheet with parchment paper; set aside. Using a meat grinder fitted with a fine blade, grind fish into a medium bowl. Add garlic, 2 teaspoons minced shallot, chopped marjoram, 1 teaspoon salt, pepper, and 2 eggs. Mix well to combine. Add matzo and about 1/4 cup water alternately, a little at a time, until the mixture is soft, but not sticky.
Dip your hands into cold water, and form the mixture into about twenty-four 1-inch balls; place on prepared baking sheet.
In a medium saucepan, combine 6 cups water, the wine, saffron, sliced shallot, remaining 3 teaspoons salt, and bay leaf over high heat. Bring to a boil, and reduce to a simmer. Quickly add dumplings, one at a time, to the cooking liquid. Cook until dumplings rise to the surface, about 6 to 7 minutes. Remove dumplings from cooking liquid, and set aside. Strain cooking liquid, and reserve.
Strain remaining 3 eggs through a fine sieve into a small bowl. Whisk in lemon juice, and season with salt. Transfer to a medium saucepan and place over medium-low heat, stirring constantly with a rubber spatula, being careful not to let the egg mixture curdle. Slowly drizzle in 1/2 cup cooking liquid from the dumplings. Cook until thick, continuing to stir, 7 to 8 minutes. Add remaining 1/4 cup cooking liquid and olive oil, stirring to combine. Add dumplings to sauce to coat. Serve fish dumplings with sauce and a sprig of marjoram.