Looks good and cheesy! Ps: au gratin makes no sense in French. I would just fully translate it to 'gratin potatoes' or more correct grammar would be pommes de terre gratiné.

To add to your list of personalised ideas, I was always told to stir in a few squares of dark chocolate near the end. Adds a bit of extra richness.

Yeah I'd say it's probably the same with my generation here in the UK, but wouldn't be surprised if my parents and their generation would still put Christian on a census despite not being in a church for 10 years!

I was just imply that putting a religion down on a census and actually being religious are two very different things, that often can't be picked up on surveys etc.

Mont d'or is potentially the best 'melting' cheese ever created

And there's nuance to that too. I'm sure a high percentage of British people still identify as Christian, as that's how they were brought up, but an incredibly small percentage are active.