1Carefully clean the Fresh anchovies: remove the heads, guts, and central bone, butterflying them open. Rinse them gently under cold water and pat them thoroughly dry with paper towels. Set aside.
2In a medium bowl, combine the Stale breadcrumbs, grated Parmigiano-Reggiano, grated Pecorino Romano, minced Garlic, and chopped Fresh parsley. Add approximately 20 grams of Extra-virgin olive oil, the Eggs, Lemon zest, Fine sea salt, and Black pepper. Mix all ingredients well until a cohesive stuffing forms.