How do I know when the oysters are cooked through?
Bake until the topping is golden brown and the oyster edges curl slightly, typically 12-15 minutes at 400°F. The cream sauce should be bubbling at the edges.
Can I prepare the spinach and bacon topping in advance?
Yes. Make the creamy spinach-bacon mixture up to 24 hours ahead and store in the refrigerator. Spoon onto oysters and add breadcrumb topping just before baking.
What type of oysters work best for baking?
Medium oysters (like Bluepoint or Littleneck) are ideal. They hold toppings well and cook evenly. Shuck them just before assembling, or ask your fishmonger to shuck them on the half shell.
Can I substitute the cream cheese?
Yes. Use mascarpone, ricotta, or full-fat Greek yogurt (1/2 cup Greek yogurt replaces the 1/2 cup heavy cream + 2 oz cream cheese for a lighter version).
How do I store leftover baked oysters?
Refrigerate in an airtight container for up to 2 days. Reheat gently in a 325°F oven for 5-8 minutes to avoid toughening the oyster meat.