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French Onion Soup (THM S, Low Carb)

Low Carb French Onion Soup

  • Author: Sarah Criddle
  • Prep Time: 30 minutes
  • Cook Time: 1 hour
  • Total Time: 1 hour 30 minutes
  • Yield: 4 servings 1x


A low carb easy French Onion Soup recipe full of flavor.



Low Carb French Onion Soup Ingredients

  • 1 pound of thinly sliced sirloin steak (save for another recipe or chop it up and place in the sop at the end)
  • 2 tablespoons Kerrygold Butter (if you don’t have this just use regular butter)
  • 1/2 teaspoon salt
  • 1/2 teaspoon pepper
  • 2 medium onions sliced in very thin circles
  • 1/4 cup of unsalted butter (1/2 a stick)
  • 1/2 teaspoon salt
  • 1 teaspoon of THM Gentle Sweet
  • 1/2 teaspoon of Thyme
  • 14 cup box of good quality Beef Stock (look for stock without added sugar)
  • 4 dashes of Worchestershire Sauce (I use Lea & Perrins)
  • Provolone Cheese slices (as many slices a you would like)
  • 1/2 a Joseph Lavash Bread cut into squares and toasted    



  • Put 2 tablespoon of Kerrygold Butter into a medium Dutch oven or soup pot on medium heat.
  • Add salt & pepper.
  • Once butter has melted put in the thin sliced sirloin and cook thoroughly.
  • Take out steak and set aside for another recipe (Stuffed Portobello Recipe) or chop up and put into this soup at the end.
  • Slice onions into thin circles and separate.
  • Put the 1/4 cup of butter into the pot with the steak juices.
  • Allow butter to melt, stirring, and then add the thinly sliced onions.
  • Sprinkle 1/2 salt and the THM Gentle Sweet onto the onions and cook on medium heat, stirring occasionally, until translucent.
  • This is the longest part.  It takes a good 25/30 minutes to cook the onions slowly without burning.
  • Once cooked add in the thyme, beef stock, & Worchestershire Sauce. Allow to simmer.
  • Place big scoops of soup into oven safe bowls.
  • Here is where you would add in the chopped steak.
  • Add the toasted squares of Joseph Lavash Bread.
  • Place several slices of Provolone on top of soup.
  • Broil in oven until the cheese gets completely melted with golden bubbles (just a few minutes usually).
  • Enjoy!