beurre de crevettes

OBS: Composition. (...) Beurre, carapaces de crevettes.

CONT: For each kind of seasoned butter, add 1 lb (500 g) butter [to] the listed ingredients .... Shrimp butter: 1/2 lb (250 g) cooked shrimp and shells, ground very fine. Force shrimp butter through a sieve to remove pieces of shell.