Combine the grated cheeses, flour, white pepper and nutmeg and set aside. In a medium sauce pan heat the Angus Brut sparkling wine on medium-high to just under a boil. Immediately turn the heat down to a low setting and add the cheese mixture just a small amount at a time and stirring with a wooden spoon continuously while the cheeses melt. Add the roasted garlic cloves. Continue to stir and make sure the mixture is not sticking to the bottom of the pan. When the fondue has melted and is a smooth consistency, add the brandy and stir again. Remove from the heat. Spoon out the roasted garlic cloves before serving.
Serve in a fondue pot and keep heat at a low setting. Serve with sliced baguette bread