Directions:
In the top of a 2- to 3-quart double boiler, off the heat, beat egg yolks and sugar with a hand-held electric mixer or whisk until mixture is lemon-colored and creamy, about 5 minutes.
Set over barely simmering water. Add Marsala and continue beating until egg mixture increases in volume and holds soft peaks, about 6 minutes. Remove from heat and set aside. There should be about 2 cups.