Mom dumps 3 lbs of onions in slow cooker overnight, makes irresi

Uh-oh! We're unable to calculate nutrition for this recipe because some ingredients aren't recognized.

Step 1

1. Place sliced onions in a slow cooker.

Step 2

2. Add butter, olive oil, salt, and pepper to the slow cooker with the onions.

Step 3

3. Cover and cook on low for 10-12 hours until the onions are golden and tender.

Step 4

4. Mix in beef stock, grape-derived vinegar, and fresh thyme leaves.

Step 5

5. Keep the lid on and cook on low for an additional 6-8 hours. Season with more salt and pepper to taste, and optionally, add brandy.

Step 6

6. Preheat the oven to 350°F (180°C).

Step 7

7. Divide the soup into heat-resistant bowls on a baking tray.

Step 8

8. Top each bowl with a slice of toasted bread and sprinkle with Gruyere cheese.

Step 9

9. Bake for 20-30 minutes until the cheese melts. Broil for 2-3 minutes until the cheese turns bubbly and brown.

Step 10

10. Remove, let it cool briefly, and enjoy your French onion soup!