Here's a pretty good brine recipe...
Apple Brine for Turkey
2 quarts apple juice
1 pound brown sugar (light or dark)
1 cup Diamond Crystal Kosher Salt
3 quarts cold water
3 oranges, quartered
4 ounces fresh ginger, unpeeled and thinly sliced
15 whole cloves
6 bay leaves
6 large garlic cloves, peeled and crushed
Substitute 3/4 cup Morton Kosher Salt or 1/2 cup table salt for Diamond Crystal.
Combine apple juice, brown sugar, and salt in a large saucepan. Bring to a boil over high heat, stirring to dissolve. Boil for one minute, remove from heat, let mixture come to room temperature, then refrigerate to 40°F.
In a large non-reactive container, combine the apple juice mixture with the remaining ingredients. When adding the oranges, squeeze each piece to release the juice into the container, and then drop in the peel.