RBC I In the garden of my cousin, Sepp, in Germany’s Black Forest, there is a big tree that produces lots of yellow plums every year.
Sepp, a retired forest worker, keeps the grass cut very short around his Mirabellenbaum, so he doesn’t miss a single fallen fruit.
Every evening in the fall, he gathers the plums and throws them into a big barrel to ferment. When winter comes, Sepp brings the barrel to a…