The Old-Fashioned is one of my favourite cocktails. Its simplicity makes is very easy to transfer the concept to baking. It only containes bourbon, sugar and cocktail bitters.
I was born in the Kurpfalz region of Germany which roughly is located between Frankurt and Karlsruhe along the Rhine river. A traditional late summer treat of this region is onion pie served with Federweißer. It is grape harvest season, and vintners sell partly fermented wine which is unfiltered and still sparkling.