Grilled cheese is the queen of sandwiches. Say what you will about its simplicity, its lack of intrinsic finesse (only rule: don’t burn), but it is precisely this lack of complexity that makes it perfect. Grilled cheese is tabula rasa—a blank slate onto which can be written anything (a love song for a hundred cheeses, a lust for tomatoes or bacon, a treatise on the comforts of childhood, of moms and dads, of easier times or poverty or innovation)—and that is what makes it so beloved. The grilled cheese sandwich demands nothing, but there isn’t much you can add to a grilled cheese sandwich that will ruin it (broken glass, gum, broccoli). It is, as it is, ideal. But infinitely customizable.