Moules Dijonnaise

Ingredients

• 4 pounds mussels
• 1 spoonful all purpose flour
• 2 tablespoons olive oil
• 2 shallots, diced
• 1 skinny leek, finely sliced in halfmoons
• kosher salt
• freshly cracked black pepper
• 4 cloves garlic, grated
• 1 cup dry white wine, such as sauvingnon blanc
• a small bunch of fresh thyme (about .2 ounces)
• 1/4 cup dijon mustard
• 1/4 cup whole grain mustard
• 1 cup heavy cream