In a large saucepan, add in the sugar and milk, whisk and warm this to medium-high heat. Remember it should not be boiling, just well combined.
In a small bowl, whisk the egg yolks, pour about 1/2 a cup of the warm millk and sugar mixture into the egg yolks and whisk well. This will temper the egg mixture so that it does not scramble.
Carefully pour the whisked egg mixture into the milk mixture, whisking lightly to combine.
Continue cooking on medium-high heat, whisking continuously until the temperature reaches 160°F.
Once it has reached the temperature, remove it from the heat and add the heavy cream, cinnamon, and vanilla. Mix well with a whisk to combine.
Let the mixture fully cool to room temperature and place in the fridge until chilled.
Serve with a garnish of nutmeg.
Notes
Use the egg whites for omelets, wraps, and hash.When your egg mixture reaches 160°F, remove it from heat, this is very important so that it does not overcook.Egg Nog is good for 4 days, do not keep it longer than that.Serve sprinkled with Nutmeg.