In a small bowl, combine 1 teaspoon garlic powder, 1 tablespoon salt, 2 teaspoons black pepper, 2 teaspoons Italian seasoning, and 2 teaspoons paprika.
Pat the 8-pound fully thawed turkey dry with paper towels.
Rub ½ cup softened butter underneath the turkey skin and over the outside of the turkey.
Sprinkle the seasoning mixture evenly over the turkey, coating the buttered skin.
Pour ½ cup water into the bottom of the crock pot.
Place the seasoned turkey into the crock pot.
Cover and cook on low for 7-8 hours or on high for 3-4 hours, until the turkey reaches an internal temperature of 165°F when measured in the thickest part of the breast or thigh.
Carefully remove the turkey from the crock pot and transfer it to a baking sheet or roasting pan.
Place the turkey under the broiler for 5-10 minutes, watching closely, until the skin is golden brown and crisp.
Remove the turkey from the oven and let it rest for 10-15 minutes before slicing.
Slice, serve, and enjoy.
Notes
Use a meat thermometer to make sure that the turkey is cooked through before removing it from the crock pot. Refrigerate the leftovers in an airtight container for up to 5-6 days.