Saucy Pork Chops with Cipollini Onions and Grapes

Name: Saucy Pork Chops with Cipollini Onions and Grapes
Ingredients: 1 pound small Cipollini or pearl onions (about 16); 8 thin-cut pork chops 1/4 inch thick, about 2 pounds total; Coarse kosher salt and freshly cracked black pepper; ½ cup all-purpose flour for dredging; 2 tablespoons unsalted butter; 2 tablespoons extra-virgin olive oil; 1 ?2 cup dry white wine; 2 cloves garlic finely chopped; 2 teaspoons fresh thyme leaves chopped if large; 1 tablespoons dijon mustard; 1 pound seedless red grapes cut into small clusters, leaving stems attached; 1 tablespoon balsamic vinegar