51.   Fold in the chocolate mixture until just combined.

52.   Fold into chocolate mixture.

53.   Fold a quarter of the egg whites into the chocolate mixture to lighten it.

54.   Fold cake cubes into chocolate mixture until thoroughly coated.

55.   Fold chocolate mixture back into remaining egg-sugar mixture.

56.   Fold chocolate mixture into egg mixture with a flexible rubber spatula, until completely incorporated.

57.   Fold egg whites into chocolate mixture.

58.   Fold half of whipped cream into chocolate mixture, reserving remainder of whipped cream.

59.   Fold egg yolk mixture into chocolate mixture.

60.   Fold half of whipped cream into somewhat cooled chocolate mixture until well blended.