I love this thread.
Juells, I, too, thought cabbage water was an Irish thing! I'll see your cabbage water and raise you turnip water!! I've never had either, but my Mam and her sisters talk fondly of it.
The egg in a cup with butter and salt was a "googy egg" to us, and we always had it when we were on the mend from a childhood illness. It is basically love in a cup to me! I still have it often as a delicious low-carb snack.
My Dad remembers getting what his mother called "goody" when he was a child in the 50s - it was the bread in hot milk with sugar that other posters have mentioned.
I make coddle occasionally but cheat by browning the sausages and rashers quickly at the beginning. It makes it look more appealing and enhances the flavour.
My Mam is a very good but very plain cook. I didn't taste pasta until the mid-90s when, in a daring move, she tried her hand at spag bol. When we were kids, one of her staple dishes was simply called "minced meat", in prescient manner of modern knobbish menu. It was basically the under-seasoned middle sibling of a meatball and a burger - mince with diced onion rolled in flour and fashioned into largeish rounds, fried in lard in a covered pan on the hob. It was served with her delicious, always smooth and fluffy, mashed potato. I used to put salt and brown sauce on it. So delicious! She still makes it for me sometimes when I'm down home.
I didn't taste Yorkshire puddings until my late 20s! They just weren't a thing for us growing up and I don't remember seeing them in restaurants back then. My first experience of this delight was in Derby when now DH and I went over for a football match. We were hungover and starving and inquired in the first pub we saw whether they did food. The lovely landlady asked us if we'd have a roast dinner, to which we said something like "hell, yeah"! She was doing Sunday lunch for her family in the back and did us two extra plates! Delicious. Such a lovely woman.