Mix together the cold almond milk and the coconut milk in a pot.
Set aside about a quarter cup of this liquid before you begin to heat it.
Sprinkle the 1-1/2 Tablespoon of Cornstarch into the cold 1/4 cup of liquid that you have set aside, making sure to whisk it together until the cornstarch mixture is smooth. Set this mixture aside.
Add the granulated cane sugar and the maple syrup to the pot and stir.
Turn the burner on high and heat the pot with the almond milk and coconut mixture until it comes to a boil, then turn the heat down.
Give the reserved cornstarch mixture another stir, and slowly begin to add it to the hot mixture, as you stir the mixture in the pot.
Once the cornstarch is completely incorporated, continue to stir occasionally while the mixture thickens, making sure that the liquid does not boil over or scorch.
Add the vanilla, nutmeg, cinnamon, turmeric, and black salt and stir to mix.
Continue stirring over the heat until the mixture lightly coats the back of a metal spoon. The mixture will continue to thicken as it cools. Turn off the heat.
Let cool on the stove for about 20 minutes and then transfer to a container and place in the refrigerator until cold.
Pour the cold eggnog into cups. If you prefer an adult kick to your eggnog, add an ounce of brandy to each serving. Add a dollop of non dairy whipped topping, like Coco Whip, and lightly sprinkle the top with nutmeg.
Enjoy!