Souffle Keju Buatan Dua Kali Dipanggang

Bahan-bahan (4 porsi)

• 60 g / 2 oz / 4 tbsp unsalted butter
• 1 cup finely chopped leeks or scallions/shallots ((white part only))
• 1/3 cup (40 g / 1.5 oz) plain all purpose flour (unsifted)
• 1 cup milk
• 1 cup grated good melting cheese ((see notes))
• 3 eggs (, separated)
• Pinch of salt and pepper
• 1 1/4 cups cream ((unwhipped))
• 4 tbsp grated cheese
• Pinch of salt and pepper