A proper grilled cheese sandwich has to be smashed flatter than a pancake when it comes off the grill. Bacon, sliced tomato, or sliced pickle are all acceptable additions, although not all at the same time. Sauerkraut is not, unless Swiss cheese is used and corned beef and Thousand Island dressing are added (on dark rye toast, please!).
Of course the sandwich must be served warm, with a glass of cold beer and with ketchup available for those who desire it. I'll leave it to Aeth to suggest the proper beer for accompaniment. The sandwich should never be served on a china plate with garnish and ketchup smeared around in an attempt at an impressionist design. A paper plate or a napkin is sufficient.
The sandwich should be consumed with friends while watching a sporting event for maximum enjoyment, but is always enjoyable when prepared as above.
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"the people can always be brought to the bidding of the leaders. That is easy. All you have to do is tell them they are being attacked and denounce the pacifists for lack of patriotism and exposing the country to danger. It works the same way in any country."
Hermann Goering, April 1946.