Bienville Sauce

Bienville sauce is the heart of oysters Bienville, the New Orleans Creole classic invented at Antoine’s restaurant in the French Quarter. The sauce itself is a luxurious seafood-fortified velouté built on a pale roux, fish stock, and three kinds of seafood: speckled trout, tiny shrimp, and lump crab. Egg yolks and heavy cream finish it into something halfway between a sauce and a custard.

Do not let the roux brown. This is a blond roux, not a Cajun-dark gumbo roux. Three minutes of slow cooking takes the raw flour edge off but keeps the color pale so the finished sauce stays creamy ivory rather than turning gray.

Whip the egg yolks with the cream before they hit the hot sauce, and beat hard for the full four minutes specified. The vigorous beating is what tempers the yolks and emulsifies the cream into the velouté without scrambling. The Chablis goes in last for a clean, dry-white acidity that cuts the richness.

The sauce needs that 30 minute chill before serving. It firms up enough to hold a spoon-shape on top of each oyster on the half-shell, then loosens back to silky as it bakes.

Chef Tips

• Use the smallest shrimp you can find, or chop larger ones fine. They cook through in the simmer and need to be the same size as the crab pieces.
• Real fish stock matters here. Bottled clam juice diluted with water is a passable substitute, but homemade gives much deeper flavor.
• Bake the oysters on a thick bed of rock salt to keep them level. Tipped shells dump the sauce.
• Sub a finely diced Gulf snapper or redfish if speckled trout isn’t available. The sweetness profile is similar.

Variations

• Spoon over sliced sauteed mushrooms for a Bienville stuffed mushroom appetizer.
• Use the sauce to top broiled fish fillets, glazed under the broiler with parmesan.
• Add 2 tablespoons sherry alongside the Chablis for a slightly richer, nuttier finish.