01 - Combine the cold water, kosher salt, and sugar in a large mixing bowl, stirring until fully dissolved.
02 - Submerge the chicken or turkey breast in the brine, cover the bowl, and refrigerate for 4 to 8 hours to allow the flavors to penetrate.
03 - Set the oven to 325°F and allow it to come to full temperature.
04 - Remove the meat from the brine and pat it thoroughly dry with paper towels. Evenly sprinkle black pepper, garlic powder, onion powder, smoked paprika, and dried thyme over the surface, rubbing the seasonings in gently.
05 - Roll the seasoned meat tightly in parchment paper, then wrap it securely in aluminum foil, twisting both ends to form a compact, firm log shape.
06 - Place the wrapped meat log on a wire rack set over a baking sheet to ensure even air circulation during roasting.
07 - Roast in the preheated oven for 1 hour, or until a meat thermometer inserted into the center registers 162°F.
08 - Remove from the oven and let the meat cool completely, preferably refrigerating overnight, before slicing thinly for sandwiches or charcuterie.