I know REAL fondue is supposed to be made with wine not beer, but made this way it creates a sharp cheesy taste which goes nice on pizza, you could always replace the beer with white wine if you wanted to try for a more authentic taste.
equal quantities oil and flour
2-3 grated garlic cloves
1 tsp mustard
1 Tbsp nutritional yeast
beer to mix
Gently fry the first four ingredients until bubbly then slowly add the beer the same way you make a white sauce, stop adding beer when you get the thickness desired. Season sparingly - the more salt you add the more the bitterness of the beer comes through.
Use as a pizza topping of dip lightly steamed veges and crusty bread in it.