The Black Forest Gateau Is An Extra Moist German Black Forest Cake With Layers Of Sponge With Whipped Cream And Cherries. Garnished With Chocolate Sha.....The Black Forest Gateau Is An Extra Moist German Black Forest Cake With Layers Of Sponge With Whipped Cream And Cherries. Garnished With Chocolate Shavings And Cherries. Only Available In Select Cities.