This is a test of commonsense. Complete the next sentence:

How to make cheese toast
Butter a slice of white bread on both sides.
Try sourdough for a tangy flavor, or an airy bread like ciabatta if you like the cheese oozing through the holes and burning on the pan. Buttering both sides will create a golden crust and a moist interior.
If you use unsalted butter, add a pinch of salt to the pan to add more flavor. Fry the bread on both sides (optional).