You need 1 ingredient. The key ingredients include: ["Resist the urge to add anything else other than what is listed here. The beauty of this dish is in its simple ingredients.", "(Do not add garlic! It will take away from the onion flavor. The onion needs to be the star of the show!! It is, after all, onion soup!)", "It's also important to properly caramelize the onions.", "You need to allow at least 30 to 40 minutes of cooking slow on medium-low heat.", "DO NOT BURN them, but they should have a dark brown color when done.", "This will ensure that your onions are sweet, juicy and delicious!", "Some people insist on adding sugar.", "I am one who insists on NOT adding sugar.", "The onions have all the natural sugar your soup will need once they are properly cooked down and caramelized.", "7 large (about 6 pounds) sweet onions", "(Vidalia or Texas Sweet) the onion will cook down", "5 teaspoons Fresh Thyme, leaves removed, chopped", "1 French Baguette (it's the long skinny one), sliced into rounds.", "5-6 tablespoons unsalted Butter", "10-12 ounces Fresh grated Gruyere cheese", "(from a wedge. Make sure it's ""cave-aged".
