Turkey Brine

This must be the trick for moist, effortless turkey. It came out perfect! Recipe from Martha Stewart Living.
Makes enough brine for one 18- to 20-pound turkey
* 7 quarts (28 cups) water
* 1 1/2 cups coarse salt
* 6 bay leaves
* 2 tablespoons whole coriander seeds
* 1 tablespoon dried juniper berries
* 2 tablespoons whole black peppercorns
* 1 tablespoon fennel seeds
* 1 teaspoon black or brown mustard seeds
* 1 fresh whole turkey (18 to 20 pounds), patted dry, neck and giblets reserved for stock, liver reserved for stuffing
* 1 bottle dry Riesling
* 2 medium onions, thinly sliced
* 6 garlic cloves, crushed
* 1 bunch fresh thyme

1. Bring 1 quart water, the salt, bay leaves, and spices to a simmer, stirring until salt has dissolved. Let cool for 5 minutes.
2. Line a 5-gallon container with a large brining or oven-roasting bag. Place turkey in bag. Add salt mixture, remaining 6 quarts (24 cups) water, and the other ingredients. Tie bag; if turkey is not submerged, weight it with a plate. Refrigerate for 24 hours, flipping turkey once.