Richard Bertinet's Pain Surprise - James Martin Chef

Ingredients

• Olive oil, for greasing
• 200g lardons
• 1 shallot, finely sliced
• 1 small leek, finely sliced
• 250g crème fraiche
• 2 whole eggs
• Sea salt and freshly ground black pepper
• Freshly ground nutmeg, to taste
• 1 large sourdough loaf
• 2 medium potatoes, cooked and thickly sliced
• 1 reblochon cheese, thickly sliced