Do not rinse the chicken beforehand; you can, however, trim away any excess fat. [substeps] If you don't have a meat mallet, you can use a rolling pin or a jar instead.
[header] How to cook a chicken breast [title] Pound the chicken breasts with a meat mallet inside a large, plastic, zippered bag. [step] They need to be about ½ inch (1.27 centimeters) thick. Focus on the thicker areas so that the chicken breasts are all the same thickness by the time you are done.