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Slow Cooker Double French Onion Soup

Jon
Recipe by
Comments Off on Slow Cooker Double French Onion Soup
5 hours 15 minutes
Prep: 10 minutes | | Servings: Serves 4 to 6

Ingredients

  • 2 pounds sweet white onions (such as Vidalia), halved and thinly sliced (2 large onions)
  • ¾ pound shallots, thinly sliced (8 to 10 small shallots)
  • 2 thyme sprigs
  • 1 garlic clove, smashed
  • 1 bay leaf
  • 3 tablespoons unsalted butter
  • ¾ teaspoon kosher salt, plus more to taste
  • 8 cups low-sodium beef broth
  • Freshly ground black pepper, to taste
  • 1 large baguette, cut into ½-inch-thick slices
  • 8 ounces Gruyère cheese, thinly sliced or grated

Instructions

  1. In a slow cooker, combine the onions, shallots, thyme, garlic, bay leaf and butter, and season with salt. Turn the slow cooker on high and cook until the onions are very soft and the garlic has disintegrated, 3 hours. Add the beef broth, season with a pinch of black pepper and continue to cook on high for 2 hours more. Makes about 10 cups French onion soup.
  2. Meanwhile, about 30 minutes before serving, adjust the oven rack to the top portion and preheat the oven to 425°. On an aluminum foil-lined baking sheet, arrange 8 to 12 bread slices in a single layer and toast in the preheated oven until light golden brown, 5 minutes. Set aside and increase the oven temperature to the low broil setting.
  3. On the baking sheet, place 4 to 6 oven-safe bowls and fill each to the rim with soup. Top with 1 or 2 slices of toasted bread and layer with cheese, completely covering the bread. Broil in the oven until the cheese is melted, 2 to 3 minutes. Serve with any extra bread for dipping.

Notes

Source: Tasting Table