Keto French Onion Soup: A Delicious and Low-Carb Twist

Enjoying a classic bowl of French onion soup is now possible on a keto or low-carb diet. This Keto French Onion Soup recipe captures all the rich, savory flavor of the traditional version. It features deeply caramelized onions in a hearty beef broth, but it uses a secret ingredient—pumpkin puree—for a touch of creaminess and sweetness. As a result, this recipe provides a comforting and satisfying meal that is also completely keto-friendly.

Ingredients & What You’ll Need

For the Soup:

• Unsalted Butter (3 tbsp): This is for caramelizing the onions.
• Yellow Onion (2): You should peel and slice these thinly.
• Beef Broth (4 cups): This provides the savory liquid base.
• Pumpkin Puree (½ cup): A secret ingredient that adds creaminess and color.
• Kosher Salt (½ tsp): It is a seasoning for the onions.
• Black Pepper (½ tsp): This adds flavor to the soup.

For the Topping:

• Your Favorite Bread (4 slices): You should cut each slice into a circle. Sola bread is a great low-carb option.
• Swiss Cheese (4 slices): This should be chopped for topping the soup.

How to Make Keto French Onion Soup

This recipe requires a little patience, as you will need time to caramelize the onions. However, the final result is completely worth the effort.

Making the Rich Soup Base

First, melt the butter in a medium-sized Dutch oven over medium heat. Stir in the sliced onions and ½ teaspoon of kosher salt. Cover the pot with a lid and let the onions cook for about 5 minutes to start softening. Now, remove the lid and allow the onions to caramelize until they become a deep golden brown color. This process takes 45-60 minutes, and you should stir occasionally. Once the onions are caramelized, stir in the beef broth and pumpkin puree. Season the mixture with pepper and salt to taste. Bring the soup to a boil for about 10 minutes.

Finishing the Keto French Onion Soup

While the soup is simmering, you should set your broiler to high. Arrange individual 8-ounce ramekins on a baking sheet. Using a ladle, spoon the onion soup into the ramekins evenly. Place one of the bread slices over the top of each ramekin, then cover each bread slice with one piece of chopped Swiss cheese. Now, carefully place the baking sheet under the broiler for a minute or two, or until the cheese is melted and browned. Serve your finished Keto French Onion Soup immediately.

Tips for Perfect Keto French Onion Soup

• Don’t Rush the Onions: The key to this recipe is the deep flavor that comes from caramelizing the onions slowly. Therefore, you should not rush this step.
• Broiler Watch: The cheese will brown quickly under the broiler. You should watch it carefully to prevent it from burning.
• Pumpkin Puree: The pumpkin puree adds a great texture and a hint of sweetness without adding a strong pumpkin flavor. You can use a bit more or less depending on your preference.

Final Thoughts

This Keto French Onion Soup recipe is proof that you do not have to give up your favorite comfort foods on a low-carb diet. Its rich flavors and satisfying textures make it a perfect choice for a special dinner or a cozy night in. As a result, you can enjoy a guilt-free indulgence that is both healthy and delicious.