French Onion Pasta

Name: French Onion Pasta
Ingredients: 2 tablespoons olive oil; 2 tablespoons unsalted butter; 2 large yellow onions , thinly sliced 1/4-inch thick; 3/4 teaspoon kosher salt , plus more to taste; 5 cloves garlic , chopped; 1 tablespoon fresh thyme leaves; 3/4 cup dry white wine; 4 cups low-sodium beef broth; 1 cup water; 2 bay leaves; 1 pound dried orecchiette pasta; 1/4 cup heavy cream; 1 tablespoon Worcestershire sauce; 1 cup grated Gruyère or Swiss cheese (about 3.2 ounces), plus more for serving; Freshly ground pepper , to taste