Slow Cooker French Onion Soup

Ingredients:
For Crock Pot French Onion Soup recipe, you require the following ingredients:

• 4 onions, sliced
• 6 1/2 cups vegetable broth
• 1/4 cup red table wine
• 1 1/2 tsp dijon mustard
• 1 1/2 tbsp balsamic vinegar
• 2 bay leaves
• 3/4 tsp thyme
• 1/4 tsp salt, or to taste
• 1/4 tsp pepper, or to taste

Instruction: