Easy Crock Pot French Onion Soup

Oh so simple and oh so good. Better than restaurant quality, this Crock Pot French Onion Soup is an elegant classic soup for everyday or special meals.
Prep Time10 mins
Cook Time10 hrs 4 mins
Total Time10 hrs 14 mins
Course: Soup
Cuisine: French
Servings: 4
Calories: 278kcal
Author: Dan Mikesell AKA DrDan


  • 1 1/2 pounds onions about 3 medium size onions
  • 1 teaspoon coarse salt
  • 2 tablespoons butter
  • 1/2 teaspoon pepper
  • 1 1/2 teaspoon Worcestershire sauce
  • 1/2 teaspoon thyme
  • 4 cups beef broth
  • Crusty bread
  • Cheese of choice for topping


  • Chop 1 1/2 pounds of onions about 3 medium size onions. Add to a smaller crock pot. If doubling recipe then a full-size crock pot is correct.
  • Add to a smaller crock pot. Add one teaspoon coarse salt, two tablespoons butter, 1/2 teaspoon pepper, 1 1/2 teaspoon Worcestershire sauce and 1/2 teaspoon thyme. The butter can go in unmelted, but you will need to stir in 1 hour or melt it first in the microwave.
  • Cook on high for 9-10 hours until nicely darker brown. Be warned that some crock pots may run hot and please watch for the end point and don't go by time alone. Then add 4 cups of beef broth and cook on high for at least one hour more.
  • Preheat broiler to high. Arrange ramekin or oven safe bowls on a cookie sheet. Ladle hot soup it into the bowls, float toasted crusty bread on soup and cover each bowl with cheese of your choice.
  • Broil until cheese is bubbly and golden, 2-4 minutes.


Pro Tips:

  1. Be advised that some crock pots may run hotter so watch for softened and deep golden brown as the endpoint for the onions being done. I would say if your crock pot ever boils on low, it may be in the "runs hot" category, then use low for this recipe.
  2. Please check the onions half way though due to #1
  3. This recipe can be easily double but could also be cut in half.
  4. Some type of crusty bread is used to float cheese on top. You can use what you want, but a nice crusty French baguette is my choice. For the cheese we like provolone, but some prefer gruyere or some Swiss.
  5. Quality matters here in the choice of broth. Do not cheap out on generic.
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Calories: 278kcal | Carbohydrates: 33g | Protein: 11g | Fat: 12g | Saturated Fat: 7g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Cholesterol: 31mg | Sodium: 807mg | Potassium: 284mg | Fiber: 3g | Sugar: 9g | Vitamin A: 400IU | Vitamin C: 15.7mg | Calcium: 240mg | Iron: 2.7mg