black pepper. Refrigerate one hour, turning occasionally.
To make barbecue sauce, heat 1 tablespoon oil in a saucepan and sauté onion and garlic. Add shrimp shells, bay leaves, lemons, water, Worcestershire sauce, salt, and wine. Bring to a boil. Reduce heat and simmer for 30 minutes. Cool and strain. Place over high heat; cook until thick and dark (about 15 minutes), stirring often.
In a deep skillet, sauté shrimp in 1 tablespoon oil; add cream and barbecue sauce. Stir and simmer for three to four minutes. Whisk in butter until smooth. Remove shrimp to platter, pour sauce over top, and garnish