Alton's Turkey Brine.

From the master, Alton Brown. For the entire procedure for making the brined turkey, proceed here.

Turkey Brine

1 cup kosher salt
1/2 cup light brown sugar
1 gallon vegetable stock
1 tablespoon black peppercorns
1 1/2 teaspoons allspice berries
1 1/2 teaspoons chopped candied ginger

Combine the vegetable stock, salt, brown sugar, peppercorns, allspice berries, and candied ginger in a large stockpot over medium-high heat. Stir occasionally to dissolve solids and bring to a boil. Then remove the brine from the heat, cool to room temperature, and refrigerate.

To brine:

Early on the day or the night before you'd like to eat: combine the brine and 1 gallon of heavily iced water in a 5-gallon bucket. Place the thawed turkey (with innards removed) breast side down in brine. If necessary, weigh down the bird to ensure it is fully immersed, cover, and refrigerate or set in cool area for 8 to 16 hours, turning the bird once half way through brining.