Butterfly Breast of Turkey This page first published: Apr 23, 2004 · Updated: Jun 12, 2018 · by CooksInfo. Copyright © 2021 · This post may contain affiliate links · This blog generates income via ads · A boneless breast of turkey, pounded flat. Can come skinless or with skin on. Will weigh from 4 1/2 to 11 pounds (2 kg to 5 kg.) Cooking Tips They may come already pounded, or you may need to do it yourself.