Place your prepared red potatoes at the bottom of the slow cooker.
In a medium mixing bowl, combine 6 tablespoons of melted butter, 2 teaspoons of garlic powder, 2 teaspoons of onion powder, 1 teaspoon of Italian seasoning, ½ teaspoon of kosher salt, and ½ teaspoon of ground black pepper.
Place 6 boneless, skinless chicken thighs in the bowl with the spices and rub the mixture all over the chicken thighs.
Place the seasoned chicken thighs on top of the potatoes in the slow cooker.
Pour 1 cup chicken broth into the slow cooker around the chicken and potatoes. Sprinkle 1 cup grated Parmesan cheese evenly over the chicken thighs.
Cover the slow cooker and set it to low. Cook for 4 - 5 hours on low or until the chicken reaches an internal temperature of 165°F and the potatoes are tender. Alternatively, you can cook on high for 2 - 3 hours or until the internal temperature reaches 165°F.
Once the chicken is done, garnish with ¼ cup freshly chopped parsley if desired, and serve with the flavorful garlic Parmesan sauce from the bottom of the slow cooker over the chicken and potatoes. ENJOY!