Clean the mussels and wash them thoroughly. Discard opened mussels. Peel and finely chop the onions. Peel garlic and press it through a garlic press. Wash, clean and finely chop the parsley.
Chop the garlic, parsley (keep some for garnishing) and some salt in a mortar, add wine. Heat the oil in a pot and fry the onions until transparent. Dust with flour and saffron, sauté. Add garlic mixture and 1/8 litre water, mix and bring to the boil. Cook mussels in little boiling water in a closed pot at moderate heat in steam for eight minutes. Pour onto a sieve. Discard unopened mussels. Remove the mussel meat from the shells. Put some shells aside. Add the mussel meat to the sauce, leave to stand for a minute, stirring gently with a wooden spoon.
Pour onto a sieve. Discard unopened mussels. Remove the mussel meat from the shells. Put some shells aside. Add the mussel meat to the sauce, leave to stand for a minute, stirring gently with a wooden spoon. If necessary, place the mussels in the sauce in some mussel shells. Serve with salad and baguette bread