Tender cod is gently poached in lemon-scented cream, layered over buttery mashed potatoes, and baked until lightly golden and bubbling. This preparation emphasizes controlled heat, clean acidity, and classic gratin technique for a refined coastal comfort dish. Creamy Cod and Potato Gratin Seafood Bake 🛒Ingredients : 2 medium russet potatoes, peeled and quartered 2 cod fillets, 6 to 8 ounces each 2 pinches cayenne pepper, divided Salt, to taste 7 tablespoons unsalted butter, divided 2 tablespoon