Keto French Onion Soup is a low-carb version of the traditional classic French onion soup recipe. Sweet caramelized onion simmered into a beef broth with cheesy keto bread croutons topped with French swiss cheese.
No, you can’t! Traditional French onion soup has many high-carb ingredients. But wait! I have created a 100% keto-friendly French onion soup!
As a French girl on a keto diet, I love French onion soup, so I had to recreate a keto version of my family’s traditional French onion soup recipe!
If you wonder, is French onion soup keto-friendly? Well, no! A traditional French onion soup is not keto-approved. Below I listed all the ingredients and reasons why you shouldn’t eat a traditional French onion soup on keto:
So, as you can see, you can’t eat a classic onion soup recipe. But let me show you how French onion soup and keto can work together!
There are a few necessary tweaks to make an onion soup keto-friendly. Let me show you how to select the ingredients to make a keto low-carb French onion soup.
It is super easy to make an onion soup. First, heat the butter, add finely sliced white onion, and cook for 20-25 minutes until soft, brown, and fragrant.
Then, add erythritol and salt to caramelize the onion. Finally, deglaze the onions with dry white wine and beef broth.
The best part of French onion soup is these crunchy croutons and broiled bubbly cheese on top! You don’t want to miss this even on keto so let me share my tricks to making quick keto croutons to add on top of your soup.
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A traditional French onion soup is not topped with small bread croutons but with a thin French baguette slice.
As a French person, let me share the secret for this!
French people eat baguettes daily, and the slice of baguette on top of the onion soup is most of the time a stale baguette that has hardened on the kitchen countertop.
Then, we slice thin pieces of hard baguette and toast it in a bread toaster or oven to get it very hard and crispy.
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Finally, we spread fresh butter on the bread and rub a fresh garlic glove to flavor it.
This is then added on top of the onion soup and French grated cheese: usually Emmental, gruyere, or swiss cheese, and broil in the oven.
Of course, you can’t eat regular French bread or croutons on a keto diet. But I have a few solutions for you to mimic crispy croutons into your soup.
My favorite option is to make my 90-second keto microwave bread recipe in a tall cylinder coffee mug. This keto recipe mimics the baguette shape.
Then, release the bread cylinder and slice into thin bread slices. The slices will be very soft so bring them into a bread toaster on high until crispy.
Then, spread butter on the toasted bread slices and rub fresh garlic on the bread – onions and garlic are delicious, don’t skip!
Finally, top your keto onion soup bowl with a slice of this keto crouton recipe, add cheese and broil!
Et voila! You made a keto French onion soup. If someone asks you if you can eat French onion soup on a keto diet, you can proudly answer YES, and serve this yummy recipe!
If you don’t feel like baking, use some of the options below to mimic croutons into your keto soup:
Onion soup stores very well in the fridge for up to 5 days in a sealed container.
You can rewarm the soup in a saucepan or microwave. Then, broil in the oven with shredded cheese.
This recipe serves 8 bowls. Serving size is 1 cup of soup and 1 slice of keto crouton and cheese. The entire low-carb onion soup bowl, including bread slices, contains 7.8 grams of net carbs or 6.1 grams of net carbs without the keto bread.
Below I listed more keto soup recipes for you to try:
Enjoy the lovely Keto French recipe, and don’t forget to leave me a comment below if you made it and review it!
You can also follow me on Pinterest for more keto inspiration.
The recipes, instructions, and articles on this website should not be taken or used as medical advice. You must consult with your doctor before starting on a keto or low-carb diet. The nutritional data provided on Sweetashoney is to be used as indicative only. The nutrition data is calculated using WP Recipe Maker. Net Carbs is calculated by removing the fiber and some sugar alcohols from the total Carbohydrates. As an example, a recipe with 10 grams of Carbs per 100 grams that contains 3 grams of erythritol and 5 grams of fiber will have a net carbs content of 2 grams. Some sugar alcohols are excluded because they are not metabolized. You should always calculate the nutritional data yourself instead of relying on Sweetashoney's data. Sweetashoney and its recipes and articles are not intended to cure, prevent, diagnose, or treat any disease. Sweetashoney cannot be liable for adverse reactions or any other outcome resulting from the use of recipes or advice found on the Website.