Add the chicken breasts, butter, broth, heavy whipping cream, cream cheese, garlic, onion powder, garlic powder, salt and pepper to taste to a slow cooker. My slow cooker is 7.5 quarts.
1 ½-2 pounds boneless skinless chicken thighs or breasts, 2 tablespoons butter, 1 cup chicken broth, 1 ½ cups heavy whipping cream, 4 oz cream cheese, 2-3 garlic cloves, ½ teaspoon onion powder, ½ teaspoon garlic powder, salt and pepper to taste