- This classic seafood/fish stock, reduced to a glace, is a premium blend of the finest fruits of the sea: lobster, shrimp, crab and fish. Imagine a perfect, natural lobster stock reduced to a glace, typically prepared painstakingly by hand only in the finest gourmet restaurants in Europe. You'll be able to depend upon this same consistent, highly-reduced seafood glace to give your sauces and soups a tremendous, sweet seafood flavor and a beautiful red hue, which is created naturally, with no added coloring.
This 1.5 oz container makes approximately 4 cups (946ml) of classic seafood stock. (from More Than Gourmet)