Thaw turkey breast in refrigerator and prepare according to directions on package. Remove from refrigerator and allow to stand at room temperature for 30 minutes.
Pat dry turkey thoroughly with paper towels.
3 pound turkey breast
Place turkey, breast side up, on top of the dressing.
In a small bowl combine softened butter, garlic, thyme, sage, and rosemary.
Using your fingers, gently loosen the skin from the breast meat, spreading half of the butter mixture under the skin. Rub softened butter over turkey breast and sprinkle with salt and pepper.
6 tablespoons butter, 3 cloves garlic
Cover and cook on high 1 hour.
Reduce heat to low and cook 5 hours until meat thermometer inserted into breast registers 165 degrees.
Remove turkey breast from slow cooker and cover with aluminum foil.
1 teaspoon thyme
Let stand 20 minutes before carving. Carve turkey and serve with stuffing and gravy.