French Onion Soup, Slow Cooker

By LadyRev-2

Note long cooking time on this. Be sure to allow plenty of time.

Ingredients

• 3 pounds yellow onions, peeled, cut in half and thinly sliced
• 2 tablespoons unsalted butter, melted
• 2 tablespoons olive oil
• 2 1/2 teaspoons kosher salt
• 1/2 teaspoon freshly ground black pepper, or more to taste
• 2 sprigs fresh thyme
• 1/4 cup balsamic vinegar
• 8 cups (2 32-ounce cartons) beef broth
• 1/3 cup brandy, optional but recommended
• 4 to 6 baguette slices, toasted (1 slice per
• bowl)
• 1 1/3 to 2 cups grated Gruyere cheese (1/3 cup
• per bowl)

Details

Servings 6
Preparation time 30mins
Cooking time 1200mins
Adapted from tiphero.com

Preparation

Step 1

1. Put the onion slices in a 5-quart (or
larger) slow cooker, along with the butter,
olive oil, salt, and black pepper.
2. Cover the crockpot and cook on low
overnight, or for 10-12 hours. The
onions shouldbe dark golden brown and soft.
3. Add the beef broth, balsamic vinegar, and
fresh thyme.
4. Cover and continue cooking on low for 6 to
8 hours.
5. Season to taste with additional salt and
pepper, if desired, and stir in the brandy
if using.
6. Preheat the oven to 350 degrees
Fahrenheit (180 degrees Celcius).
7. In evenly-portioned amounts, ladle the soup
into oven-safe bowls. Place the bowls
on a baking sheet to catch any spills
while in the oven.
8. Top each bowl with a baguette slice and
the shredded Gruyere.
9. Bake for 20 to 30 minutes, until the
cheese is completely melted.
10 Turn the oven to broil and brown the tops
for 2 to 3 minutes, or until the cheese
is bubbling and browned. Remove from the
oven and let cool for a few minutes before
enjoying!