Alton Brown's Roast Turkey

INGREDIENTS

• 1 (14 to 16 pound) frozen young turkey
• 1 gallon vegetable broth, homemade or canned
• 1 cup kosher salt
• 1/2 cup packed brown sugar, light or dark
• 1 tablespoon black peppercorns
• 1 1/2 teaspoons allspice berries
• 1 1/2 teaspoons candied ginger, chopped
• 1 gallon water, iced
• 1 red apple, quartered
• 1/2 onion, quartered
• 1 cinnamon stick
• 1 cup water
• 4 sprigs rosemary
• 6 leaves sage
• Canola oil