In a medium mixing bowl, combine the brown sugar, minced garlic, soy sauce, grated ginger, olive oil, and sesame oil. Whisk these ingredients together until they are thoroughly blended, forming a smooth marinade.
Season the chicken breasts liberally with salt and freshly cracked black pepper. Place them in a large zip-lock bag or shallow dish. Pour the marinade over the chicken, ensuring that each piece is generously coated. Seal the bag or cover the dish with plastic wrap and refrigerate for at least 30 minutes; for optimal flavor, refrigerate for up to 4 hours.
Preheat your oven to 375°F (190°C).
Heat a large oven-safe skillet over medium-high heat. Carefully remove the chicken from the marinade, reserving the leftover marinade for later use. Sear the chicken breasts in the skillet for about 2-3 minutes per side, or until they develop a beautiful golden-brown crust.
After searing, pour the reserved marinade over the chicken in the skillet, distributing it evenly.
Transfer the skillet to the preheated oven and bake for 20-25 minutes, or until the chicken is completely cooked through (with a safe internal temperature of 165°F/74°C). halfway through the baking process, baste the chicken with the sauce for an extra layer of flavor.
Once cooked, carefully remove the skillet from the oven and allow the chicken to rest for around 5 minutes before slicing. This step will help retain the juices.
Drizzle any remaining sauce from the skillet over the sliced chicken before serving.
For a beautiful presentation, garnish the chicken with chopped green onions and sesame seeds, adding both flavor and visual appeal.
Notes
Serve with jasmine rice or steamed vegetables for a complete meal.