Easy French Onion Soup - PB on Life

Ingredients

• 1/4 cup extra-virgin olive oil
• 5 large sweet onions (like Maui or Vidalia), thinly sliced
• 2 tablespoons red wine vinegar
• 6 cloves garlic, thinly sliced
• 2 bay leaves
• 1 teaspoon chopped fresh thyme
• 1/2 teaspoon ground black pepper
• 6 cups bone broth or vegetable stock or water, or a combination of the three
• iodized sea salt, to taste
• Grated Gruyere or Parmesan cheese, to taste, for serving.