Preheat the oven and prepare the chicken breasts.Preheat oven to 350°F (180°C). Then, pat the 4 chicken breasts dry with paper towels. Next, place the chicken in a large dish and sprinkle it generously on all sides with paprika, coriander, garlic powder, oregano, salt and pepper. Then drizzle with olive oil and rub the seasoning into the meat, covering every surface.
Optional rest. For deeper flavor, cover and refrigerate for 1 to 2 hours. If you’re short on time, skip this step and go straight to baking, because it still tastes great.
Wrap and Bake. After that, place each breast on its own sheet of parchment paper and fold tightly, sealing the edges like a packet. Place the chicken breasts, spaced slightly apart, inside a 9x13-inch baking dish. Bake for 30 minutes, or until the thickest part of the center reaches 165°F (74°C) on a meat thermometer. Thicker breasts may require 35 to 40 minutes to cook through completely.
Cool completely, serve or store. Leave the chicken in the parchment until fully cooled. Meanwhile, the juices reabsorb into the meat, which keeps it moist.Once cooled, unwrap the chicken, pour any juices over it and slice as thin as you like against the grain. Finally, use the slices right away or refrigerate them for the week ahead.