I think a long enough time has passed since the heyday of Sara Lee to concede the magnificence of the OG BFG: that towering torte of cherry brandy-soaked chocolate sponge, cherries and whipped cream whose name nods to the German Schwarzwalder's many cherry trees and the black, white and red of its traditional dress. It's also a very simple bake, because the show-stopping bit is all in the assembly.