Sprinkle pork chops with seasonings. Dredge lightly with flour. In a large skillet, heat oil over medium heat; cook chops until a thermometer reads 145°, 4-5 minutes per side. Remove from pan; keep warm., Add onion to same pan; cook and stir over medium heat 2 minutes. Add garlic; cook and stir 1 minute. Add nectarines; cook until lightly browned on both sides. Stir in broth and, if desired, honey; bring to a boil. Reduce heat; simmer, uncovered, until nectarines are softened and sauce is slightly thickened, about 5 minutes. Serve with chops.