Slow-Cooked French Onion Soup

“My husband and I love French onion soup, so I wondered if I could turn it into a less labour-intensive dish by altering my recipe to work in a slow cooker. The rich, cheesy result was an instant winner at home.” —Ronda Eagle, Goose Creek, South Carolina

Slow-cooked French onion soupTaste of Home
Servings Prep Time Cook Time
8servings 30minutes 7hours
Servings Prep Time
8servings 30minutes
Cook Time
Portions: servings
Portions: servings
  1. Place butter in a 5-qt. slow cooker. Top with sweet and red onions; sprinkle with pepper. Cook, covered, on low until onions are tender, 5-6 hours.
  2. Stir in broth, water, wine, herbs and Worcestershire sauce. Cook, covered, on low until flavours are blended, 2-3 hours. Remove herb sprigs and bay leaf.
  3. To serve, preheat broiler. Place bread on a baking sheet; broil 4 in. from heat until lightly toasted, 1-2 minutes per side. Top bread with cheese; broil until cheese is melted, 1-2 minutes. Divide soup among eight bowls; top with cheese toasts and serve immediately.
Recipe Notes
Test Kitchen tips

  • Gruyere cheese is delicious in this recipe—its sweet, nutty flavour goes well with the oniony broth, and it melts wonderfully.
  • Toasting the bread with cheese separately, instead of broiling on top of the soup in crocks, prevents the underside of the bread from becoming soggy.

Nutrition Facts

1 serving: 157 calories, 7g fat (4g saturated fat), 19mg cholesterol, 706mg sodium, 15g carbohydrate (6g sugars, 1g fibre), 7g protein.