Ingredients
Method
- Heat the oven to 200°C (180°C fan / Gas 6) with a baking sheet inside. Butter the dish upwards and dust with Parmesan.
- Make a thick white sauce with the butter, flour and milk.
- Off the heat, add the mustard, cayenne, nutmeg and pepper. Cool for 5 minutes.
- Beat in the yolks, then the cheese. Season.
- Whisk the whites with a pinch of salt to firm, glossy peaks.
- Stir in a large spoonful of whites, then gently fold in the rest in two batches.
- Pour into the dish and run a thumb round the rim.
- Bake on the hot sheet for 25–30 minutes without opening the door for 20 minutes.
- Serve immediately.
Notes
Whisk the whites to firm, glossy peaks and fold gently.
Butter the dish in upward strokes and dust with Parmesan.
Do not open the oven door early.
Serve immediately, as it sinks as it cools.
The unbaked mixture can be frozen in ramekins.
