Rub the inside of the cooking vessel with the garlic clove; discard the garlic.
In a large bowl, toss cheeses with cornstarch.
Select Manual Mode 1, setting the temperature to 203°F / 95°C and the time to 30 minutes.
Add the wine and bring to a simmer. Add in the cheeses to the simmering wine a little at a time, stirring well between each addition to ensure a smooth fondue.
Once is the cheeses are completely melted press Cancel.
Select Manual Mode, setting the temperature to 135°F / 57°C and the time to 2 hours, stirring constantly.
Add the pinch of nutmeg and season with salt and pepper to taste.
Arrange an assortment of bite-sized dipping foods on a serving plate or a cutting board and enjoy!