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Lobster Thermidor Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.1 from 36 reviews
  • Author: Melanie
  • Prep Time: 15 minutes
  • Cook Time: 25 minutes
  • Total Time: 40 minutes
  • Yield: 4 servings
  • Category: Main Course
  • Method: Baking
  • Cuisine: French

Description

Lobster Thermidor is a classic French seafood dish featuring tender lobster meat cooked in a rich, creamy cognac-infused sauce with Dijon mustard, shallots, and Gruyère cheese, then baked until golden and bubbly. Perfect for an elegant dinner, this recipe serves four and delivers a decadent, flavorful experience with a crispy cheese topping and a hint of fresh herbs and lemon.


Ingredients

Scale

Seafood

  • 2 whole lobsters (or 4 lobster tails, about 1 1/2 lbs total)

Sauce

  • 2 shallots, minced
  • 3 tbsp butter
  • 1/4 cup cognac or brandy
  • 1 tbsp Dijon mustard
  • 1 cup heavy cream

Topping & Garnish

  • 1/2 cup grated Gruyère or Parmesan cheese
  • 1 tbsp fresh parsley, chopped
  • 1 tbsp lemon juice
  • Salt and pepper, to taste


Instructions

  1. Cook the Lobster: Steam or boil the whole lobsters until just tender, about 8-10 minutes, depending on size. Remove the meat from the shells and chop into bite-sized pieces. Reserve the shells for serving.
  2. Sauté Shallots: In a skillet, melt butter over medium heat and add the minced shallots. Cook until the shallots are soft and translucent, about 3-4 minutes.
  3. Flambé with Cognac: Add the cognac or brandy to the skillet. Carefully flambé the alcohol or cook until the alcohol smell evaporates, about 1-2 minutes, stirring occasionally.
  4. Prepare the Sauce: Stir in the Dijon mustard and heavy cream. Let the mixture simmer gently until it thickens slightly, approximately 5-7 minutes, stirring frequently to prevent scorching.
  5. Add Lobster Meat: Fold the chopped lobster meat into the creamy sauce, ensuring all pieces are well coated. Season with salt and pepper to taste.
  6. Assemble: Spoon the lobster mixture back into the reserved lobster shells or small oven-safe ramekins. Sprinkle grated Gruyère or Parmesan cheese evenly over the top.
  7. Broil: Place the filled shells under a broiler for 3-5 minutes, or until the cheese topping is golden brown and bubbly. Watch closely to avoid burning.
  8. Garnish and Serve: Remove from the oven and garnish with chopped fresh parsley and a squeeze of lemon juice. Serve immediately while hot.

Notes

  • You can substitute lobster tails if whole lobsters are not available.
  • Flambéing adds flavor but can be skipped by simply cooking off the alcohol.
  • Gruyère cheese provides a traditional nutty flavor, but Parmesan can be used as an alternative.
  • Be sure to watch the broiler closely to prevent burning the cheese topping.
  • Serve with a light salad or crusty bread to complement the richness of the dish.