Scalloped Oysters with Mushrooms and Leeks

- 6 tablespoons unsalted butter
- 10 slices firm white sandwich bread, cut into ¼-inch cubes
- 12 ounces white mushrooms, sliced
- 1 large leek, chopped, white and light green parts only (1 cup)
- ¼ teaspoon salt
- ¼ teaspoon freshly ground white pepper
- 1½ pints shucked “select” oysters
- ¾ cup heavy cream
- Chopped fresh parsley, for garnish
Instructions:
For this recipe, instead of shucking fresh oysters, you can use containers of preshucked oysters.
- Position a rack in the center of the oven and preheat to 375°F. Lightly butter an 11½ × 8-inch (2-quart) baking dish.
- In a small saucepan over low heat, melt 4 tablespoons of the butter. In a rimmed baking sheet, toss the butter with the bread cubes. Bake, stirring occasionally, until the bread cubes are very lightly toasted and crisp, about 15 minutes. Set aside. (The bread cubes can be prepared, stored in an airtight container at room temperature, for up to 1 day.)
- In a large skillet, melt the remaining 2 tablespoons butter over medium heat. Add the mushrooms and cook until they give off their liquid, about 4 minutes. Stir in the leek, salt, and pepper. Cook until the leeks soften and the mushroom liquid evaporates, about 4 minutes. Transfer to a bowl and set aside. (If preparing the vegetable mixture ahead, cool, cover, and keep at room temperature.)
- In a large sieve or colander set over a bowl, drain the oysters, reserving the oyster liquid. In the same skillet, boil the oyster liquid over high heat until reduced to about ¼ cup, about 3 minutes. Stir in the heavy cream and set aside.
- Layer half of the bread cubes in the bottom of the prepared baking dish. Top with the oysters, then the mushroom mixture. Pour over the heavy cream mixture. Top with the remaining bread cubes. Place the baking dish on a baking sheet.
- Bake until the cream bubbles and the oysters turn opaque, about 25 minutes. If the cubes are browning too deeply, cover loosely with aluminum foil.
- To serve, spoon the scalloped oysters onto salad plates and sprinkle with the parsley. Serve hot.