Moules-frites pairs French fries with what shellfish?

Moules-frites pairs French fries with mussels. The French name literally joins moules, meaning mussels, with frites, meaning fries.

The dish is strongly associated with Belgium and northern France, and it is widely regarded as a Belgian national dish. Its exact origin is debated, but the combination makes practical historical sense: mussels were plentiful and inexpensive along the Flemish coast, while potatoes became an important food in Belgium.

The mussels may be prepared in several styles. Moules marinière commonly uses white wine, shallots, parsley, and butter; other versions include cream, herbs, or regional sauces. Restaurants usually serve the mussels and fries separately so the fries do not become soggy. Moules-frites is distinct from seafood dishes pairing fries with oysters, scallops, or clams.