Answer by
Vivi55 (287)
Melt 1 tbsp butter in a medium saucepan over medium low heat. Whisk in 1 tbsp flour, and cook for 5 minutes, stirring constantly.
Next, stir 1 cup white wine (or broth) into the flour mixture with a whisk. Slowly add cubes of Gruyere, Cheddar, and Emmentaler cheese (7 oz each); stir until cheese is melted.