It always takes me a minute to “catch up” on these, so if you’re keeping track (don’t), we’re now up to Thanksgiving of last year (2020) with 16-5: Sacher Torte. Sachertorte is a real thing, and Simply Delicious actually has a pretty decent take on it.
The Wikipedia link above gives a pretty close approximation of the origin story Simply Delicious mentions on their card above, so they’re hitting near the mark. Sometimes the best Simply Delicious recipes are the ones they DON’T make up for themselves.
Side note: My dad ended up LOVING this one (and he’s been eating the dishes from this book for 30+ years), so it comes highly recommended.