Mussels are absolutely delightful in their simplest form . I prepare them very simply as follows : take 30 g of salted butter and chop a white onion into a tall pot . Add in a bouquet of Parsley and a Bay leaf. Add in a liter of mussels per person , followed by 2-3 dl of white wine . Put the lid on and let your mussels steam for about 15 minutes, shaking them around, from time to time. They will be done when they are all open and are bright yellow in color. Turn the heat off with the lid on and let them steam a few more minutes. The mussels should be semi-firm, and not too hard = overcooked !
Serve with French fries ( I recommend baked, and not fried) and your favorite sauces .