Halve the chicken breasts lengthwise. Place each half in between two pieces of saran wrap then pound until each cutlet is 1/4 inch thick.
Season the cutlets with sea salt and freshly cracked pepper, to taste then dust with flour. Coat a skillet with cooking spray and olive oil then heat over medium high. Sauté the cutlets for 2-3 minutes on one side then flip over and sauté for 2 minutes with the pan covered (to keep the cutlets moist). Transfer cutlets to a platter and cover with a tin foil tent.
Place the garlic in the skillet, stirring constantly for 1 minute. Add the chicken broth to the pan along with the capers, and lemon juice, cook the sauce for 2 minutes, until reduced. Add the butter, lemon slices, and fresh parsley to the sauce then pour over the cutlets and serve. Enjoy.