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Slow Cooker French Onion Soup

Russ Myers


The Super Easy Way to Make this Classic Recipe!

★★★★★ 3 votes
1 1/2
10 Min
5 Hr
Slow Cooker Crock Pot


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2 lb Yellow onions (trimmed, halved, and sliced) (2 quarts)
1 box (32 ounces) Beef broth (less sodium version if desired) (1 quart)
2 tsp Dried thyme
1/2 C White wine (or water)
2 Tbs Flour
6 Thick slices sour dough bread or peasant/rustic loaf, crusts trimmed
1/2 C Grated Parmesan (or Swiss) cheese
Cracked pepper (optional)

How to Make Slow Cooker French Onion Soup


  • 1Place sliced onions into a 5 or 6-quart slow cooker.

    Add broth and thyme and stir.

    Cover cooker with lid and cook on high setting 3 to 4 hours or until onions are tender. Mix white wine (or water) with flour and stir into the slow cooker.
  • 2Cover and continue to cook on high setting for 1 hour longer or until thickened.Before serving, place bread slices on a baking sheet and top with cheese.

    Broil until cheese is bubbly.

    To serve, ladle soup into shallow bowls. Place one slice of hot cheesy bread into each bowl.

    Sprinkle with pepper to taste.

Printable Recipe Card

About Slow Cooker French Onion Soup

Main Ingredient: Vegetable
Regional Style: American
Other Tags: Quick & Easy, Heirloom

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