Lobster Thermidor

Recipe from Oxmoor House

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  • 2 quarts water
  • 4 frozen lobster tails, thawed
  • 1/4 cup butter or margarine
  • 1/4 cup all-purpose flour
  • 1 1/2 cups whipping cream
  • 1 egg yolk, beaten
  • 1 cup sliced fresh mushrooms
  • 1 tablespoon chopped fresh chives
  • 1/2 teaspoon salt
  • 1/2 teaspoon dry mustard
  • 2 tablespoons sherry
  • 1/2 cup grated Parmesan cheese, divided
  • Paprika


  1. Bring water to a boil in a large Dutch oven; add lobster tails. Return to a boil; cook 5 minutes. Remove tails from water with kitchen tongs; rinse under cold water. Drain.
  2. Split lobster tails lengthwise, leaving bottoms of shells attached. Remove meat, and cut into bite-size pieces. Set meat aside. Rinse shells thoroughly, and let dry. Press shells open flat, and place in a 13- x 9- x 2- inch baking dish.
  3. Melt butter in a heavy saucepan over low heat; add flour, stirring until smooth. Cook 1 minute, stirring constantly. Gradually add whipping cream; cook over medium heat, stirring constantly, until thickened.
  4. Gradually stir 2 tablespoons hot mixture into yolk; add to remaining hot mixture, stirring constantly. Stir in mushrooms, chives, salt, and mustard. Cook over low heat 2 to 3 minutes. Remove from heat; stir in sherry and reserved lobster.
  5. Sprinkle 1 teaspoon cheese in each lobster shell. Spoon lobster mixture evenly into shells. Sprinkle with remaining cheese and paprika. Bake at 375° for 15 minutes or until browned. Serve immediately.
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