From Living on a Dime: http://www.livingonadime.com/easy-homemade-eggnog-recipes/
Non-Alcoholic Homemade Eggnog
Ingredients
3 1/2 cups milk
1 1/2 tsp. vanilla
1 tsp. ground cinnamon
1 cinnamon stick
Pinch of cloves
6 egg yolks
3/4 cup sugar
1 cup heavy cream
1/4 tsp. nutmeg
Directions
Over low heat, combine milk, vanilla, cinnamon, cinnamon stick and cloves in saucepan. Slowly raise heat and bring to a boil. (it should take about 7 minutes to get to a boil.) The minute it starts to boil, take off of the heat, let it steep for 2 minutes and then remove the cinnamon stick.
In a separate bowl, beat the egg yolks and sugar until they are pale and fluffy. Using a mixer on low, slowly pour the hot milk mix into the egg yolks (tempering the yolks). Whisk or beat until well incorporated. Pour everything back into the saucepan and heat on med/low for about 5 minutes, continually stirring, until thickened. Do not boil! It will curdle if it boils.
Stir in heavy cream and nutmeg and refrigerate overnight. Before serving, sprinkle with cinnamon.