Combine broth, wine, oil, lemon zest and juice, garlic, and rosemary, in a large zip-close plastic bag. Add chicken, squeeze out air, and seal bag. If you don’t have any bags just leave it sit in a large enough bowl and cover it with Saran Wrap. Turn to coat and refrigerate at least 6 hours or up to overnight.
Spray large ridged grill pan with nonstick spray and set over medium-high heat. Remove chicken from marinade and discard marinade. Place chicken in pan and grill, turning once, until cooked through. For each side grill 5 to 7 minutes.
For an outdoor grill, start up your grill. I have an ignition dial and I have to push the start up button for that to get my grill to start. Then I set all my burners to medium-high heat and cook 5 to 7 minutes per side.