Mousseline of lobster with champagne beurre blanc is a luxurious and elegant dish that combines the delicate flavors of lobster with a rich and creamy sauce. The mousseline is made by blending lobster meat with cream and egg whites, resulting in a light and airy texture. The champagne beurre blanc adds a touch of sophistication, with its buttery and tangy flavors. This dish is perfect for special occasions or when you want to impress your guests with a gourmet seafood dish.