French Onion Pasta Recipe

Ingredients

• 3 tablespoons olive oil
• 2 tablespoons butter
• 4 medium onion, thinly sliced
• 1-1/2 teaspoons salt, divided
• 3 garlic cloves, minced
• 1 tablespoon minced fresh thyme, plus more for garnish
• 3/4 cup dry white wine
• 2 teaspoons Worcestershire sauce
• 1/2 teaspoon pepper
• 16 ounces uncooked orecchiette pasta
• 4 cups beef stock
• 1 tablespoon sherry vinegar
• 1/4 cup half-and-half cream, warmed
• 6 ounces Gruyere cheese, grated