Steamed Mussels

Bahan-bahan (4 porsi)

• 50 g / 3 tbsp butter (, unsalted)
• 1/2 onion (, finely chopped (brown, yellow, white))
• 3 g arlic cloves (, very finely chopped)
• 1 kg / 2 lbs mussels (, bearded and scrubbed (Note 1))
• 1 cup (250ml) dry white wine
• 2 tomatoes (, deseeded and diced (Note 2))
• 1/4 cup flat leaf parsley (, roughly chopped)
• Lemon wedges ((essential!))
• Crusty bread to serve ((essential!))