Fish En Papillote
This isn't just baking; it's a centuries-old French technique known as En Papillote (meaning "in parchment"). It transforms a simple piece of fish into a personal, aromatic steam oven—the ultimate culinary theater. The beauty of this method lies in the hermetically sealed parchment pouch. As it bakes, the contents gently steam in their own infused juices and aromatics (think white wine, citrus, and fresh dill). This creates an impossibly tender, flaky fish and perfectly cooked, nutrient-rich vegetables.