Defrost the frozen shrimps. Peel garlic and dice coarsely. Wash the rosemary and dab dry. Rinse shrimps and drain well.
Lightly heat the oil and butter in a saucepan. Sauté garlic, rosemary and bay leaf for about 5 minutes. Increase heat. Add the prawns and cook for approx. 3 minutes, turning until the prawns are almost done.
Deglaze with wine. Season with salt, cayenne pepper, Tabasco, lemon juice and Worcester sauce and bring to the boil. Take the pot off the stove and let it simmer covered for about 15 minutes.
Wash parsley, shake dry, pluck off leaves and chop coarsely. Sprinkle prawns with parsley and arrange with the stock. Serve with baguette and the rest of the wine.