Haven’t made quiche for a while and suddenly though I would today. Followed a Mary McCartney recipe online - you caramelised the onions (I used 1/2 red and 1/2 white) with Balsamic vinegar and a tiny bit of sugar. I made whole meal pastry. Just thought I’d share, as it’s very tasty .
Yesterday I cheated and we had one which was bought and had been in the freezer since Christmas! It just wasn't the same as home-made but needed to be eaten up - yours looks lovely.
Chewbaca, I googled it and found the recipe quite easily. Sorry, can't do links on this. I'd forgotten it is called 'baking blind'. I don't think I have done this for about forty years!