Place the eggs, cream, milk, and vanilla in a mixing bowl and whisk until very well combined.

Zest the orange into the bowl and then add both the coffee and erythritol.

Whisk until combined.

Pour everything into a pot over medium heat and bring to at least 165 degrees F or when it will coat the back of a spoon and leave a streak if you draw your finger down the back of the spoon.

Add the nutmeg and cinnamon, remove from the heat, and mix to combine.

Strain into a clean bowl with a fine mesh strainer.

Taste and add the stevia glycerite drop by drop to achieve your desired level of sweetness.

I used four drops.

Add the tequila if you so desire and mix to combine.

Chill, preferably overnight.

It will thicken up considerably during that time.

Recipe Notes I add the spices at the end because they will over-extract if they were in the eggnog as it cooked.

They will extract overnight as the eggnog chills, so don't worry if you feel it is not nutmeg and cinnamon-ey enough when you initially taste.

I always hold back stevia glycerite until the end for fine adjustment of sweetness.

Erythritol is sluggish to dissolve and is hard to make fine adjustments with