I’m a wheelchair user in a care home. I was given Herman by a friend from Church. An entertaining thing to do! He’s turned out OK – would comment though that I had to put him in for much longer than stated, even in my fan oven, and even then he’s crunchy on the outside and soggy in the middle. More of a very tasty sourdough pudding than cake, it’s very nice.
1) don’t lick the spoon etc. after mixing, raw eggs can cause salmonella
2) put the baking powder in right at the very last minute, after getting melted butter / lined tin etc. ready, as it starts working (rising) as soon as it gets wet; you want to put it in as late as possible, just before putting it in the oven.
I like this idea, a good one and a nice pudding!