01 - Combine cold water, kosher salt, and sugar in a large mixing bowl. Stir until the salt and sugar are fully dissolved.
02 - Submerge the chicken or turkey breast in the brine solution. Cover the bowl and refrigerate for 4 to 8 hours to allow the meat to absorb moisture and seasoning.
03 - Set the oven to 325°F and allow it to come fully to temperature while you prepare the meat.
04 - Remove the breast from the brine and pat it thoroughly dry with paper towels. Evenly coat the surface with black pepper, garlic powder, onion powder, smoked paprika, and dried thyme, gently rubbing the seasonings into the meat.
05 - Roll the seasoned meat tightly in parchment paper, then wrap it securely in aluminum foil. Twist both ends firmly to form a compact, uniform log shape.
06 - Place the wrapped meat log on a wire rack set over a rimmed baking sheet to ensure even air circulation during roasting.
07 - Roast in the preheated oven for approximately 1 hour, or until a meat thermometer inserted into the center registers 162°F.
08 - Remove the meat from the oven and allow it to cool completely. For best slicing results, refrigerate the wrapped log overnight before cutting into thin, even slices for sandwiches.