Chicken and Potatoes with Garlic Parmesan Cream Sauce

Ingredients

• 6 bone-in, skin-on chicken thighs
• 1 tablespoon Italian seasoning
• Kosher salt
• freshly ground black pepper
• 3 tablespoons unsalted butter, divided
• 3 cups baby spinach, roughly chopped
• 16 ounces baby Dutch potatoes, halved*
• 2 tablespoons chopped fresh parsley leaves
• 1/4 cup unsalted butter
• 4 cloves garlic, minced
• 2 tablespoons all-purpose flour
• 1 cup chicken broth, or more, as needed
• 1 teaspoon dried thyme
• 1/2 teaspoon dried basil
• 1/2 cup half and half*
• 1/2 cup freshly grated Parmesan