One-Pot French Onion Pasta

Ingredients

- 6 servings +

• 3 large yellow or sweet Vidalia onions, peeled and thinly sliced
• 3 tbsp unsalted butter, for slow caramelizing
• 1 tbsp olive oil, prevents butter from burning
• 4 cloves garlic, minced
• ½ cup dry white wine, such as Pinot Grigio or Sauvignon Blanc
• 4 cups beef bone broth, rich and deeply savory
• 12 oz rigatoni or penne pasta, uncooked
• ½ cup heavy cream, or crème fraîche
• 1 ½ cups Gruyère cheese, freshly shredded
• ½ cup Parmesan cheese, freshly grated
• 1 tbsp fresh thyme leaves, plus sprigs for garnish
• 1 tsp Worcestershire sauce, for rich depth