• Egg Yolks
• sugar
• Marsala wine (preferred or sweet Vermouth
• Optional ingredients
  • Vanilla
  • Cinnamon
  • Lemon Peel

Various recipes exist with differing proportions, so it is largely a matter of taste or personal experience. A suggested starting point is:

• 6 egg yolks
• 1/3 cup sugar
• 1/4 cup Marsala

Preparation

Separate egg yolks

Use a double boiler. Since the preparation temperatures are so low (no steam), the bottom of the top pan needs to touch the water below.
It is best to use a thermometer to check the temperature.

A final temperature somewhat higher than that point at which Salmonella dies and lower than the boiling point of alcohol is desirable.
150 degrees F or 65 degrees C is a good target.

Cooking

Apply heat, add ingredients.
Use hand mixer to beat into a foam as the temperature approaches the target temperature. The foam should have a very fine texture.

Remove from heat at the target temperature.

Serve within an hour. Good hot or cold!