Grilled Lamb Chops with Pink Peppercorn Sauce

Name: Grilled Lamb Chops with Pink Peppercorn Sauce
Ingredients: 1/4 cup canola oil; 2 tablespoons yellow mustard; 2 tablespoons soy sauce; 2 tablespoons Worcestershire sauce; 2 tablespoons chopped fresh parsley, plus more for serving; 1 tablespoon chopped fresh rosemary, plus more for serving; 2 cloves garlic, minced; 2 pounds double-cut lamb rib chops, frenched if desired; Kosher salt and freshly ground black pepper; 2 tablespoons unsalted butter; 2 tablespoons finely chopped sweet onion; 1/4 cup brandy; 1/2 cup heavy cream; 1 tablespoon pink peppercorns, coarsely crushed; Kosher salt