Wenn Du Deutsch üben willst, dann lass uns anfangen...

I've never been to a "German Christmas Market" in the UK, but I'll be there in December, so if you can point me to one round NEL, I could check how much "German" is there.

I had a "German Bratwurst" in the UK once. The Bratwurst was OK, but the roll was a soft roll, which would be a no-go in Germany, I assume the "German Christmas Market" is similar, trying to copy, and getting it right up to a certain level.