Easy Homemade Garlic Soup

Ingredients

• 3 whole garlic bulbs
• 1 tablespoon olive oil
• 2 tablespoons butter
• 1 medium onion, chopped
• 1-1/4 teaspoons salt
• 1 teaspoon minced fresh thyme
• 1 teaspoon minced fresh sage
• 1/2 teaspoon pepper
• 5 tablespoons all-purpose flour
• 4 cups reduced-sodium chicken broth
• 1 bay leaf
• 1/2 cup heavy whipping cream
• 1 tablespoon sherry, optional
• Optional: Grated Parmesan cheese, fresh coarsely ground black pepper