Heat the wine and garlic in a 2-quart cast iron pot over medium heat. Add the American cheese and Parmesan cheese. Stir to combine until the cheeses melt completely, about 5 minutes. Stir in the truffle oil and season with pepper.
Serve with salad greens and bread.
This recipe was provided by professional chefs and has been scaled down from a bulk recipe provided by a restaurant. The Food Network Kitchens chefs have not tested this recipe, in the proportions indicated, and therefore, we cannot make any representation as to the results.