MethodPut the cheese, a
tiny bit of salt, as much black pepper as you like, the cayenne pepper,
lager and mustard in a heavy saucepan and heat gently until the cheese
melts to a smooth consistency. Remove from heat. Beat the egg yolks and
blend them quickly into the cheese mixture. Whisk the egg whites with a
tiny pinch of salt until stiff and fold gently and evenly into the
mixture. Return to heat until the mixture starts to thicken.
Pour the mixture over hot toast on very hot plates
and serve immediately.
For a less rich mixture, leave out the egg yolks.