http://simplyrecipes.com/recipes/eggnog/
I think that is my Dad's recipe. Actually, I don't think it is, I don't remember him ever using the stove but the ingredients are the same and he adds a lot more booze. It is awesome.
Eggnog Recipe
Ingredients
4 egg yolks
1/2 cup sugar
2 cups milk
2 whole cloves
Pinch of cinnamon
1 cup cream
1 teaspoon freshly grated nutmeg
1 teaspoon vanilla extract
2 Tbsp each of bourbon and rum or brandy, or to taste (can omit for kid-friendly eggnog)
*4 egg whites (optional)
Method
1 In a large bowl, beat egg yolks until they become lighter in color (can whisk by hand or use a mixer for this). Slowly beat in the sugar, whisking until fluffy.
2 Combine the milk, cinnamon, and cloves in a thick-bottomed saucepan. Slowly heat mixture on medium heat until it is steaming hot, but not boiling.
3 Temper the eggs by slowly adding half of the hot milk mixture into the eggs, whisking constantly while you add the hot mixture. Pour the mixture back into the saucepan.
4 Cook on medium heat, stirring constantly with a wooden spoon, until it begins to thicken slightly, and coats the back of the spoon. It helps to have a candy thermometer, but not necessary; if you have one, cook until the mixture reaches 160°F. Do not allow the mixture to boil, or it will curdle. (If the mixture does curdle you may be able to save it by running it through a blender.) Remove from heat and stir in the cream. Strain the mixture through a mesh strainer to remove the cloves. Let cool for one hour.
5 Mix in vanilla extract, nutmeg, and bourbon/rum and brandy (feel free to omit for kid-friendly eggnog). Chill.
Optional: Beat egg whites until they reach soft peaks. Add a teaspoon of sugar and continue to beat until they reach stiff peaks. Gently fold into eggnog.
Makes 1 quart. Serves 4-6.