Best Slow Cooker French Onion Soup Recipe -step By Step Guide

Best Slow Cooker French Onion Soup Recipe -step By Step Guide:-A time-honored classic, French onion soup has the ability to warm not just the body but also the soul. It is a dish that has been popular for generations. The fact that it has such a reassuring scent and delightful flavours is what makes it such a classic. This dish is prepared using a time-honored technique, which entails bringing the components of the dish to a simmer on the heat over a period of many hours

Best Slow Cooker French Onion Soup Recipe -step By Step Guide

. On the other hand, it is refined and updated with a contemporary touch by making use of the convenience that a slow cooker offers in terms of its operation. While you go about your day, this makes it possible for the flavours to come together in a way that is both delightful and satisfying.



  • 5 large onions, thinly sliced
  • 4 tablespoons unsalted butter
  • 2 tablespoons olive oil
  • 2 teaspoons granulated sugar
  • 4 cloves garlic, minced
  • 1 teaspoon dried thyme
  • 1 bay leaf
  • 8 cups beef broth
  • 1/2 cup dry white wine (optional)
  • Salt and black pepper to taste
  • Baguette slices, toasted
  • Gruyere cheese, shredded
  • Fresh thyme leaves for garnish


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  • To caramelise the onions, put the butter and olive oil in a large skillet and set it over medium heat. This will allow the onions to get caramelised. Caramelization of the onions will be possible as a result of this. The caramelization of the onions will be feasible as a consequence of this. After slicing the onions, sprinkle some sugar over them, and then place them inside the cooking vessel. This will ensure that the onions are cooked thoroughly. Cook the onions for about thirty to forty minutes, stirring them occasionally, until they have a colour that is somewhere between a mild golden brown and a caramelised appearance. This should take about thirty to forty minutes. Approximately thirty to forty minutes should be allotted for this.
  • When the onions have attained the proper level of caramelization, it is time to transfer them to the slow cooker. This is the moment at which the onions are ready to be cooked. At this stage of the process, we have reached the next phase of the method. Garlic that has been chopped, thyme that has been dried out, and a bay leaf should be used to season the combination. There is also a bay leaf included in the package. When you have finished adding some salt and black pepper to the dish, you can then season it with salt, depending on how much salt you deem necessary.



  • After the onions have been placed in the slow cooker, the beef broth and dry white wine should be transferred to the slow cooker and then poured over the onions. Following the addition of the onions to the slow cooker, this step is carried out in the appropriate manner. Although the addition of wine to the soup is not required, it does offer an additional layer of flavour to the soup. The soup would be better off without the addition of wine. If you want to make it smoother, stir it whenever you want to.
  • The slow cooker should be covered and set to a low heat setting for a period of time ranging from six to eight hours. It is recommended that this be done. There is also the possibility of putting the slow cooker on high heat for around three to four hours. This course of action is also an option. In the event that this technique of cooking is utilised for an extended period of time, the flavours are able to mature and come together in a marriage that is genuinely remarkable.



  • In order to correctly toast baguette slices, it is necessary to first prepare the grill in the oven. It is imperative that this preparation be carried out at the end of the cooking process for the soup. Toasting the baguette slices will be available for you as a result of this. Toasting the baguette slices requires first laying them in a single layer on a baking sheet, and then placing the sheet on the grill directly over the flame. This will allow the baguette slices to be toasted. Repeating this process until the baguette slices have acquired a golden brown colour and a crispiness that is getting close to the edges is the recommended course of action.
  • In order to get the soup ready for serving, pour the soup that has been cooked into bowls that are designed to be used in the oven. It will be possible to construct and serve the soup as a result of this. It is recommended that a large quantity of shredded Gruyere cheese and one or two slices of toasted bread be placed on top of each bowl in the appropriate manner in order to achieve the best possible outcomes. Wait until the cheese has melted and become bubbly as a result of the heat, after which you should place the bowls under the grill for a few minutes. After that, you should wait until the cheese has melted.



  • As soon as the bowls have been removed from the grill, it is suggested that they be adorned with fresh thyme leaves, and it is also suggested that the bowls be consumed once they have been embellished. In order to avoid getting burned, you should wait until the soup has completely cooled down before serving it. This will protect you from getting scorched. Taking this precaution will ensure that you do not suffer from a burn. In the event that you prepare this French onion soup in a slow cooker, you will be able to take pleasure in the reassuring and relaxing aromas that it has to offer.



With its savoury broth, gooey cheese topping, and rich, caramelised onions, this French onion soup made in a slow cooker is likely to become a favourite among the recipes you have in your collection. With just a little bit of work, this dish brings the traditional flavours of French cuisine into your kitchen, making it ideal for both intimate evenings spent at home and sophisticated dinner parties. Consequently, get your hands on your slow cooker and be ready to savour the flavour of comfort in each and every bite!



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