01 - In a large saucepan, combine apple cider, kosher salt, brown sugar, peppercorns, garlic, bay leaves, and thyme. Heat over medium, stirring until salt and sugar dissolve. Remove from heat, add 2 cups cold water, and cool to room temperature. Add ice as needed to speed cooling.
02 - Transfer the turkey breast into a large sealable container or zip-top bag. Pour cooled brine over turkey, ensuring it is fully submerged. Refrigerate for 8 to 12 hours.
03 - In a small saucepan, combine cranberries, apple cider, sugar, balsamic vinegar, orange zest, and salt. Bring to a boil, then reduce heat and simmer for 10 to 12 minutes, stirring occasionally, until cranberries burst and mixture thickens. Remove from heat and let cool.
04 - Preheat oven to 350°F. Remove turkey from brine, rinse thoroughly under cold water, and pat dry with paper towels. Rub turkey breast with olive oil, black pepper, and thyme.
05 - Arrange turkey breast on a rack in the roasting pan. Roast for 45 minutes.
06 - Brush turkey breast with cranberry glaze. Continue roasting for another 25 to 35 minutes, brushing with glaze every 10 minutes, until internal temperature reaches 160°F.
07 - Remove turkey from oven and let rest, loosely covered with foil, for 15 minutes before slicing. Serve with extra cranberry glaze.