A flavorful fondue
Simmer the wine in a small saucepan, do not boil.
Meanwhile, melt the butter in a medium saucepan over medium low heat.
Whisk in the flour, and cook for about 5 minutes, stirring constantly to avoid sticking and burning.
Once the flour is cooked, stir the wine into the flour mixture slowly.
Use a whisk to smooth the mixture.
Slowly add cubes of Gruyere, Cheddar, and Emmentaler cheese; stir until cheese is melted.
Transfer cheese mixture to fondue pot.
Keep warm over low flame.
You can serve with cubed bread, fruits, or dip raw veggies into it.