Intense Flavour - Authentic Portuguese & European Recipes

Ingredients

• 1 kg (2.2 lbs) of half-shell thawed mussels
• 120 g (4.2 oz) of salted butter
• ½ grated onion
• 2 cloves of garlic
• 1 teaspoon of Dijon mustard
• Juice of ½ lemon
• 1 stale roll or a mix of stale bread, finely chopped
• Chopped parsley to taste
• 70 g (2.5 oz) of freshly grated Parmesan cheese
• Fleur de sel to taste
• Pepper to taste