re: Cream of Shrimp soup recipe from The Cottage (Alexandria)

never had it at The Cottage but looked up pics on FB. I'm guessing the base is a bechamel sauce which can be thickened using heavy whipping cream instead of milk. Or, since beurre blanc pairs well with fish, maybe the base is a modified BB using half n half or heavy cream. Use shrimp stock to add flavor and thin the soup as desired.

here's a BB sauce with lemongrass over fish