Caramelizing the Onions: The key to a great French Onion Soup is the caramelization of the onions. Start by slicing your onions thinly. You’ll need about 4 to 5 medium onions for this recipe. Heat a large pot over medium heat and add some butter (about 4 tablespoons). Add the onions, and stir them occasionally to ensure they don’t burn. This process will take about 20 to 30 minutes, but it’s worth the time! The goal is to turn the onions into a deep, golden brown color and bring out their natural sweetness.
Adding the Broth: Once your onions are perfectly caramelized, it’s time to add the broth. Pour in about 6 cups of beef broth—this will give the soup its hearty flavor. You can use a mix of beef and chicken broth if you prefer a lighter taste. Add 1-2 teaspoons of thyme, 1 bay leaf, and salt and pepper to taste. Let this mixture simmer for about 30 minutes to allow all the flavors to meld together.
Preparing the Toasted Bread: While your soup is simmering, slice a French baguette into thick slices and toast them lightly. These slices will form the base for the signature cheesy topping of Applebee’s French Onion Soup. Once toasted, set them aside.
Cheese, Please!: Once the soup is ready, ladle it into oven-safe bowls. Place a toasted slice of bread on top of each bowl, and then top it generously with shredded Swiss and provolone cheese. The more cheese, the better!
Broil for Perfection: Place your bowls under a hot broiler for about 3-5 minutes or until the cheese is melted and golden brown. Be sure to watch it closely—this step is crucial to achieving that perfect cheesy topping!