Two kinds of cheese plus beer equals dipping perfection.
In a bowl, combine both cheeses with the flour, salt, and black pepper.
Rub the cut side of the garlic clove around bottom and sides of a fondue pot.
Pour the beer into the pot and slowly get it simmering over medium-low heat, about 5 minutes.
Gradually stir the cheese mix into the beer in the pot, adding small amounts at a time, until the cheese has melted and blended, 10 to 15 minutes.
Stir the pepper sauce into the mixture to finish it off.