What is the classic thickening for Bisque?

Online Answer
Authentic recipes for bisque actually ground the shells of the crustacean into a fine paste, using that to thicken the soup. Nowadays, it is more common to use rice as a thickener.
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What is the difference between bisque and soup? A bisque is a thick and creamy type of soup. While some soups may be thickened with ingredients like potato or flour, a bisque is always made to be thick and creamy by adding cream early in the process and reducing it.
A traditional French chef would define a bisque as being a thick, creamy soup made with shellfish and thickened by a paste made from their shells. Julia Child was one chef to popularize lobster bisque in the United States.
Authentic recipes for bisque actually ground the shells of the crustacean into a fine paste, using that to thicken the soup. Nowadays, it is more common to use rice as a thickener.
Is Lobster Keto-friendly? Yes. Most seafood is incredibly Keto-friendly, just like any meat. Seafood is light, filling, and high in protein so it's a great addition to any diet, and perfect for a Keto way of eating.
It's high in fat, calories and sodium." ... "It offers little nutritional value and is very high in sodium." Lobster bisque: This is another soup with the curse of being too creamy, according to Walsh.