![](https://www.wideopencountry.com/wp-content/uploads/sites/4/eats/2017/10/Slow-Cooker-French-Onion-Soup.jpg?resize=950%2C535)
Ingredients
- 3 onions, sliced thinly
- 3 Tbsp butter
- 3 Tbsp flour
- 1 Tbsp Worcestershire sauce
- 1 tsp sugar
- 8 cups beef broth
- 8 slices french bread
- 3/4 cup grated gruyere cheese
Instructions
- In your slow cooker add the butter and onions. Cover and cook on HIGH until onions brown around the edges, about 30-35 minutes.
- Meanwhile, mix together the flour, Worcestershire sauce, sugar, and pepper. Stir the flour mixture into the onions. Add the brother and cover and cook until onions are very tender, about 7-9 hours on LOW.
- Once the soup is done, preheat your broiler to high. Place shredded cheese on the pieces of bread and broil until melted. Place a piece of bread on each bowl of soup and serve.
Notes
Don't have all day? Cook this soup on HIGH for 4-5 hours.
Use a wooden spoon to get all of the browned pieces at the bottom of the pot when adding the flour. That's the best stuff!