Comforting Chicken with Crispy Chips and Gravy - ioanacooks

Ingredients

• 3.3 pounds russet potatoes, peeled
• 8 1/2 cups vegetable oil or grapeseed oil
• 3 tablespoons chicken bouillon powder
• 1 tablespoon onion powder
• 1 tablespoon garlic powder
• 1 tablespoon salt, plus more as needed
• 1 teaspoon white pepper
• 1 teaspoon brown sugar
• 1 cup butter, at room temperature
• 3 bulbs garlic
• 1/3 cup parsley, finely chopped
• 2 tablespoons fresh sage, finely chopped
• 1 1/2 teaspoons fresh rosemary, finely chopped
• 1 pinch flakey sea salt, or to taste
• 1 pinch black pepper, or to taste
• 3.3 pounds chicken, spatchcocked
• 2 carrots, roughly chopped
• 2 onions, peeled and quartered
• 2 bulbs garlic, halved crosswise
• 1/2 lemon, quartered
• 2 sprigs rosemary
• 2 tablespoons olive oil
• 1/2 cup white wine
• 1 1/2 cups chicken stock
• 2 teaspoons cornstarch