Indulge in the rich, oceanic flavors of this creamy sauce, infused with lobster, sherry, and thyme. Perfect for mashed potatoes, but also versatile with salmon and asparagus.
Melt butter in a large pot over medium heat. Add lobster, celery, carrots, onion, thyme, peppercorns, bay leaf, parsley, seasoned salt, and lemon juice; cook, stirring constantly, until vegetables soften, about 10 minutes.
Stir in flour and tomato paste; cook for 5 more minutes, stirring constantly.
Add sherry; cook for 1 to 2 minutes to cook off the alcohol.
Add heavy cream; bring to a simmer. Reduce heat to low; simmer until sauce thickens and coats the back of a spoon, about 15 minutes.
Strain through a fine-mesh sieve; discard solids.
Season with salt and black pepper to taste.
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