Classic Moules Frites

Name: Classic Moules Frites
Cook time: 25 min
Total time: 25 min
Cuisine: European, Mediterranean, French
Ingredients: 1/4 cup extra-virgin olive oil; 1/2 cup finely sliced shallots; 5 tablespoons thinly sliced garlic; 1 cup white wine; Kosher salt and freshly cracked black pepper; Kosher salt and freshly cracked black pepper; 2 pounds mussels, cleaned and beards removed; 1/2 cup creme fraiche; 1/3 cup minced fresh flat-leaf parsley; 2 tablespoons unsalted butter; 2 tablespoons minced chives; 2 tablespoons whole-grain mustard; French fries, for serving