Grouper Oscar recipe served on a plate, by River House
Sep 24 2026
Restaurants›River House›Grouper Oscar Recipe

Grouper Oscar Recipe

Inspired by River House
Time1h
Serves4

Fresh grouper, native blue crab meat asparagus, mashed potatoes and béarnaise sauce

Was this page helpful?

Help improve this recipe for others.

Send this recipe to your inbox.

We'll email it straight to you - plus weekly cooking inspiration.

Ingredients

Some product links may be affiliates. If you buy through them, you're supporting the site and Pekin may earn a commission at no extra cost to you.

Fish

Asparagus

Mashed Potatoes

Method

Preparation

  1. 1

    Cook the Potatoes

    In a large pot, boil the peeled and cubed potatoes until tender. Drain and mash with butter, milk, and salt. Keep warm.

  2. 2

    Prepare the Asparagus

    In a skillet, melt butter over medium heat. Add minced garlic and asparagus. Sauté until asparagus is tender, about 5-7 minutes.

  3. 3

    Make the Béarnaise Sauce

    In a saucepan, combine white wine vinegar, shallots, and tarragon. Simmer until reduced. In a bowl, whisk egg yolks and gradually add melted butter, followed by the vinegar mixture. Stir until thickened. Season with salt.

Cooking the Grouper

  1. 4

    Cook the Grouper

    Season the grouper fillets with salt and pepper. Heat olive oil in a skillet over medium-high heat. Cook the fillets for about 4-5 minutes on each side or until golden brown and cooked through.

Assembly

  1. 5

    Plate the Dish

    On each plate, place a serving of mashed potatoes, top with asparagus, lay the grouper on top, and finish with a generous portion of blue crab meat. Drizzle with béarnaise sauce before serving.

More from River House