Quick & Easy Cream of Mussel Soup

Cream of mussel soup is a workhorse of Irish coastal cooking, built on a frugal trick: the mussels get steamed in a dry pan to release their natural liquor, and that briny juice becomes the soul of the soup. Don’t toss it, every drop of the pan liquid goes into the pot to flavor the cream base.

The roux of butter and flour gets just two minutes of cooking before water and the reserved mussel liquor go in, keeping the soup pale and clean rather than dark and gravy-like. A short simmer thickens it just enough, then a final stir of single cream and the shucked mussels brings everything together without overcooking the seafood.

Chef Tips

• Scrub mussels under cold running water and pull off any beards just before cooking. Discard any that don’t close when tapped, they’re not safe to eat.
• Strain the pan liquid through cheesecake or a fine sieve to catch any grit. Sandy mussels can ruin an otherwise good soup.
• Add the mussels and cream off the heat. Boiling cream curdles, and boiled mussels go rubbery in seconds.
• Season after adding the cream. Mussel liquor is naturally salty, so taste before reaching for the salt cellar.

Variations

• Swap water for fish stock or dry white wine for a deeper, restaurant-style finish.
• Stir in a tablespoon of chopped parsley and a pinch of saffron for a French moules-mariniere lean.
• Add a peeled, diced floury potato with the simmer for a heartier chowder.