Thaw turkey. Rinse under cold water and pat dry. Remove any giblets.
Place cut up vegetables and water in bottom of crock pot.
Put in turkey.
Place half of soup mix under the skin of the turkey (loosen with fingers)
Sprinkle remaining soup mix over the top of the turkey. Add dabs of butter on top.
Cook on low for 5-6 hours or until it reaches an internal temperature of 165 degrees F.
Notes
Have a good meat thermometer on hand and always check the temperature of your meat before serving. Turkey should have an internal temperature of 165 degrees F. Insert the thermometer into the thickest part of the turkey breast to check the temperature.
In addition to the onion soup mix you can add some sprigs of fresh herbs if you like, such as thyme or rosemary. You can also make your own seasoning mix instead of using the onion soup mix if you prefer.
To crisp up the skin of the slow cooker turkey breast, once the it is cooked, transfer it to a baking dish or roasting pan and put it under the broiler for a few minutes to get that yummy crispy skin. Watch the turkey breast closely and broil it just until the turkey skin starts to turn golden brown.