1 (6 pound) bone-in turkey breast
1 (1 ounce) envelope dry onion soup mix
3 T. Butter

Rinse the turkey breast and pat dry. Cut off any excess skin, but leave the skin covering the breast. Rub onion soup mix all over outside of the turkey and under the skin. Place butter in bottom of slow cooker and let it melt for a couple of minutes. Then place turkey breast in slow cooker. Cover, and cook on High for 1 hour, then set to Low, and cook for 7 hours or until turkey breast comes to a temperature of 165 degrees. When turkey is done take it out and let it sit for 10-15 minutes. While it is sitting use the drippings in the slow-cooker to make gravy.