That recipe looks fantastic although it says it takes 5 hours to make!
I also saw there a recipe for pot au creme. Again, Peg Bracken has a 2 ingredient recipe for it - cream and chocolate chips that sit in the fridge for a couple of hours. You’d never know it wasn’t from a French restaurant.
The 5 hours includes the time in the fridge to cool. I love Peg’s books. I have them somewhere. I am going to be culling my cookbooks soon and will be looking for those books.