Classic Roast Turkey with Herb Butter

Ingredients

• 1 cup unsalted butter, softened (227g)
• 2 tablespoons fresh sage, finely chopped
• 2 tablespoons fresh rosemary, finely chopped
• 2 tablespoons fresh thyme, finely chopped
• 3 cloves garlic, minced
• Zest of 1 lemon
• Salt and pepper to taste
• 1 (12-14 lb) whole turkey, thawed (5.4-6.4 kg)
• 2 teaspoons kosher salt (10g), plus additional for seasoning
• 1 large onion, quartered
• 1 lemon, quartered
• 4 cups low-sodium chicken broth (950ml)
• Fresh herbs for stuffing the cavity, optional