Steps
- Preheat the broiler to high. Separate 2 eggs and beat the whites until stiff.
- Mix the yolks with most of 50g of grated Gruyère, 2 torn slices of ham, 1 teaspoon of Dijon mustard, and 1 tablespoon of chopped dill. Season with salt and pepper.
- Gently fold in the whites. Heat a little olive oil in a small broiler-safe nonstick pan over medium-low heat, then add the mixture.
- Cook for 4 minutes, until golden underneath. Scatter over the reserved cheese and broil for 2 minutes, until set, bubbling, and golden.