Ingredients
1 (10 pound) boneless turkey breast
2 (1 ounce) packages dry onion soup mix
3/4 cup chicken stock/broth
2 tablespoons garlic powder
2 tablespoons onion powder
1 tablespoon dried parsley
1 tablespoon seasoned salt
1 tablespoon dried basil
1 tablespoon dried oregano
Instructions
Place turkey breast into a large slow cooker. Whisk onion soup mix and water in a bowl and pour the mixture over the turkey breast, spreading it out to evenly cover the meat.
Stir garlic powder, onion powder, parsley, seasoned salt, basil, and oregano in a bowl until thoroughly combined; sprinkle the seasonings over the turkey breast.
Cook on Low until turkey is very tender and the seasonings have flavored the meat, 8 to 9 hours. An instant-read meat thermometer inserted into the thickest part of the breast, not touching bone, should read at least 165 degrees F (75 degrees C).