Take the two slices of pumpernickel and add a slice or two of Jarlsberg on each side. Put it on the top rack of the oven, and put some foil on the bottom rack in case it melts off the bread. Bake it for a few minutes at 350º F until the cheese is melted and the bread is toasted. Take it out of the oven carefully, and then top it with alfalfa sprouts and slices of fresh white button mushrooms, close the sandwich, squish it together and there you have it! Makes one sandwich.
Printable recipe is here.