In large mixing bowl, beat egg yolks with 1 cup of the sugar and whip to ribbon stage. Add mascarpone cheese to whipped yolks. Do not over mix - set aside.
In double broiler, combine gelatin with water. Dissolve.
In seperate bowl, beat egg whites with remaining sugar to stiff meringue. Slowly add gelatin to meringue. Gently fold meringue into cheese mixture.
In another bowl, whip cream. Fold whipped cream into cheese mixture.
To assemble: Slice Krispy Kreme doughnuts into quarters. Quickly soak (5 seconds) quartered doughnuts in espresso. Place espresso-soaked doughnuts in pan. Sprinkle with chocolate shavings and cover with meringue mixture. Dust with cocoa powder and chocolate shavings. Place in refrigerator for 8 hours. Serve chilled.