From America's Test Kitchen
Makes 2 folded 8-inch Quesadillas
Use a light hand when seasoning with kosher salt, as the cheese itself is rather salty. Cooling the quesadillas before cutting and serving is important; straight from the skillet, the cheese is molten and will ooze out. Serve the quesadillas with salsa, guacamole, or sour cream. Finished quesadillas can be held on a baking sheet in a 200-degree oven for up to 20 minutes.