2 tbsp. (1 oz.) unsalted butter, cut or torn into 12 small pieces
1 1⁄2 oz. Parmigiano-Reggiano, very thinly sliced (about 24 slices)
Freshly ground black pepper
YIELD 1 dozen
Preheat the broiler to its highest setting. Meanwhile, shuck the oysters and, using an oyster knife, detach the meat from the bottom of the shell, reserving the fluid.
On a baking sheet, crinkle up one or more large pieces of aluminum foil to create a bed to help stabilize the oysters. Place the oysters on top, nestling them into the foil so their juices don’t spill. Atop each oyster, place 1 teaspoon of the ’nduja and a piece of butter. Divide the cheese among the oysters and top with a little black pepper.
Broil until the cheese is melted and slightly golden on top and the juices are bubbling, 6–10 minutes.
Remove the oysters to a platter and serve immediately with forks, if desired.