Light Tiramisu

Directions

1. 1
   Combine Marsala, 1/4 cup plus 1 tablespoon sugar and eggs in top of double boiler.
2. 2
   Whisk mixture over gently simmering water until thickened and foamy and mixture registers 160F.
3. 3
   on candy thermometer, about 2 minutes.
4. 4
   Remove from over water; whisk in light sour cream.
5. 5
   Cool to room temperature.
6. 6
   Beat cream cheese until light and fluffy.
7. 7
   Beat in 1/3 of egg mixture.
8. 8
   Fold in remaining egg mixture in 2 additions.
9. 9
   Line bottom and sides of 9x5-inch loaf pan with plastic wrap.
10. 10
    Line bottom of prepared pan with angel food cake slices, trimming cake to fit bottom evenly.
11. 11
    Combine coffee, rum and remaining sugar in small bowl.
12. 12
    Brush cake in pan generously with coffee mixture.
13. 13
    Pour filling over cake in pan.
14. 14
    Brush enough remaining cake slices to cover filling lightly with coffee mixture.
15. 15
    Place slices atop filling, coffee side down, trimming cake to fit pan evenly.
16. 16
    Brush top of cake generously with coffee mixture.
17. 17
    Reserve remaining cake and coffee mixture for another use.
18. 18
    Sprinkle top with grated chocolate.
19. 19
    Cover and refrigerate 8 hours or overnight.
20. 20
    Serve.