Here's a very healthy (i. E. no fresh eggs and much less fat). It was developed by a local chef, Michael Moskwa, and is delicious. I've been making for the holidays for the past 3 or 4 years.
Place egg substitute, milk, sugar, nutmeg and allspice in a large mixing bowl and whisk until frothy. Add vanilla and rum extracts (or liquor) and whisk again. Gently fold in well-thawed Cool Whip until fully blended. Chill well. Makes 12 6-oz. Servings with 165 calories and 3 grams fat. (Note: a plain glass of whole milk is equal in calories and has 4 grams fat).