Use a ceramic fondue pot such as Caquelon.
With ceramic fondue pot over heat source, add white wine and heat. Add 1/3 of each cheese and melt. Continue to add remaining cheese slowly. Be sure cheese is melted completely before adding more. When all of the cheese has been added and melted completely, add lemon juice, kirsch, nutmeg, cayenne and black pepper. Combine thoroughly.
Dip pieces of bread into fondue and enjoy.
Michael Lomonaco 1998, all rights reserved