Donauwelle is a marble pound cake, studded with sour cherries, covered in a thick layer of German buttercream and a wavy chocolate topping.

Chocolate and vanilla marble cake with a hint of rum.

Marble Cake, almost classic but more than equally delicious (in English and German)

Learn How to Marble a Cake, then try my recipe for sweet, moist, almond-scented German Marble Cake.