7: Put in the oven for 5 to 10 minutes, watching for browning.
8: Serve hot or warm.
Remarks
You can use another cheese, if you prefer, instead of the Comté. Hard-paste types work best, though this is not essential. Mimolette, for example, gives a very different flavour (as well as a lovely colour). Don't add salt in stage 2 as the cheese and mustard are already salty enough.