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Slow Cooker French Onion SoupSlow Cooker French Onion Soup
Slow Cooker French Onion Soup

Slow Cooker French Onion Soup

Let your slow cooker do the work in this classic, comforting soup recipe.
Twin Cities food blogger greens & chocolate
Twin Cities food blogger greens & chocolate
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Recipe - ST. LOUIS PARK (+Wines & Spirits)
Recipe: Slow Cooker French Onion Soup
Slow Cooker French Onion Soup
Prep Time15 Minutes
Servings6
Cook Time980 Minutes
Ingredients
3 pounds white onions, sliced
8 tablespoons unsalted butter
1 teaspoon salt
8 cups beef stock
1 tablespoon Worcestershire sauce
¼ cup white wine (or white cooking wine)
1 tablespoon red wine vinegar
4 sprigs thyme, plus additional thyme for topping
Loaf of Italian bread, cut into ¾-inch slices, for topping
2 cups shredded Gruyère cheese
Directions
  1. Place onions, butter and salt in large slow cooker. Cook on low for 8-10 hours. This works best if you do it overnight.
  2. In the morning add beef broth, Worcestershire, wine, red wine vinegar and thyme. Season with salt and pepper to taste. Cover and cook on low for another 6-8 hours.
  3. Heat oven to 350 F. Place ovenproof bowls onto baking sheet. Ladle soup into bowls. Top each bowl with 1-2 slices of bread and about â…“ cup of shredded cheese.
  4. Bake for 20 minutes.
  5. Turn on broiler and broil until golden brown, keeping a very close eye on it.
  6. Garnish with additional thyme leaves and enjoy!
15 minutes
Prep Time
980 minutes
Cook Time
6
Servings

Shop Ingredients

Makes 6 servings
3 pounds white onions, sliced
White Onions
White Onions, 1 Pound
$2.49 avg/ea$2.49/lb
8 tablespoons unsalted butter
Minnesota Creamery Unsalted Butter
Minnesota Creamery Unsalted Butter, 16 Ounce
$4.99$0.31/oz
1 teaspoon salt
Morton Fine Sea Salt
Morton Fine Sea Salt, 17.6 Ounce
$4.89$0.28/oz
8 cups beef stock
Swanson Beef Stock
Swanson Beef Stock, 32 Ounce
$3.19$0.10/oz
1 tablespoon Worcestershire sauce
L&B Worcestershire Sauce
L&B Worcestershire Sauce, 8.5 Ounce
Deal
$5.49 was $6.59$0.65/oz
¼ cup white wine (or white cooking wine)
Barefoot California Sauvignon Blanc Wine
Age restricted item
Barefoot California Sauvignon Blanc Wine, 1.5 Litre
$12.99$8.66/l
1 tablespoon red wine vinegar
L&B Italian Red Wine Vinegar
L&B Italian Red Wine Vinegar, 17 Ounce
Deal
$6.49 was $7.99$0.38/oz
4 sprigs thyme, plus additional thyme for topping
L&B Fresh Thyme
L&B Fresh Thyme, 0.75 Ounce
$3.49$4.65/oz
Loaf of Italian bread, cut into ¾-inch slices, for topping
L&B Italian Round Artisan Bread
L&B Italian Round Artisan Bread, 21 Ounce
$6.99$0.33/oz
2 cups shredded Gruyère cheese
Mifroma Le Gruyere Shredded Cheese
Mifroma Le Gruyere Shredded Cheese, 3.5 Ounce
$10.99$3.14/oz

Directions

  1. Place onions, butter and salt in large slow cooker. Cook on low for 8-10 hours. This works best if you do it overnight.
  2. In the morning add beef broth, Worcestershire, wine, red wine vinegar and thyme. Season with salt and pepper to taste. Cover and cook on low for another 6-8 hours.
  3. Heat oven to 350 F. Place ovenproof bowls onto baking sheet. Ladle soup into bowls. Top each bowl with 1-2 slices of bread and about â…“ cup of shredded cheese.
  4. Bake for 20 minutes.
  5. Turn on broiler and broil until golden brown, keeping a very close eye on it.
  6. Garnish with additional thyme leaves and enjoy!