Flattening the chicken. Increasingly, you can find chicken breast cutlets already sliced thin at the supermarket. If not, buy boneless, skinless chicken breast halves, place between two sheets of plastic wrap and pound with a meat tenderizer until about 1/4-inch thick. You want each cutlet to weigh about 4 ounces. If the breast halves are overly large, halve them horizontally before pounding into cutlets—you’ll save a lot of pounding and not end up with cutlets the size of dinner plates.