French Onion Soup - Martin's Famous Potato Rolls and Bread

Ingredients

• 6 Large Yellow Onions, peeled and thinly sliced, (about 10 cups total)
• 4 Tablespoons Olive Oil
• 2 Tablespoons Butter
• 1 Teaspoon Sugar
• Salt
• 2 Cloves Garlic, minced
• 8 Cups Beef Stock
• 1/2 Cup Dry Vermouth or Dry White Wine
• 2 Bay Leaves
• 4 Teaspoons Fresh Thyme (or 1 Teaspoon Dried Thyme)
• 1/2 Teaspoon Freshly Ground Black Pepper
• Martin's Potato Bread, toasted
• 1 1/2 Cups Grated Gruyere and a sprinkling of Parmesan Cheese