david's should-be-world-famous grilled cheese sandwiches

david makes the best grilled cheese sandwiches in the universe. i think the key ingredient is dedication. the end product should be perfectly crisp outside -- but not hard -- and softening and melty on the inside.

(1) put buttered, sliced sourdough bread on a warm pan. layer with no fewer than two types of cheese -- at least one must be melty, the other should be sharp. these two are mild and sharp cheddars.

(2) top with another slice of buttered sourdough.
(3) cover and cook on medium-low heat. seriously, lower heat than you think. this should take about 20 minutes. at least. dedication, remember?
(4) just a little longer.
(5) omg.