Herb Crusted Beef Tenderloin

Name: Herb Crusted Beef Tenderloin
Ingredients: 2 pounds center cut beef tenderloin, trimmed; 1/4 cup olive oil; 2 teaspoons chopped fresh rosemary; 2 teaspoons chopped fresh Italian parsley; 2 teaspoons chopped fresh thyme leaves; 2 teaspoons minced garlic; 1 tablespoon kosher salt; 1 tablespoon freshly ground black pepper; Potato Flan, recipe follows; 1 cup Red Onion Marmalade, recipe follows; 1 tablespoon unsalted butter; 3 tablespoons minced garlic; 9 Yukon Gold potatoes, very thinly sliced (about 3 pounds); 1/2 pound gruyere, grated; 3 eggs; 1 1/2 cups heavy cream; 1/2 teaspoon freshly ground black pepper; 1/4 teaspoon grated nutmeg; 2 tablespoons olive oil; 1 1/2 pounds red onion, thinly sliced; 1/4 cup plus 2 tablespoons sugar; 1 1/2 teaspoons kosher salt; 1/2 cup ruby port; 1/2 cup red wine vinegar; 1 1/2 teaspoons chopped fresh thyme