Preheat your oven to 375°F (190°C).
In a mixing bowl, combine honey, Dijon mustard, olive oil, soy sauce, garlic powder, salt, and pepper.
Whisk the marinade until well blended.
Place the chicken breasts in a baking dish.
Pour the honey mustard marinade over the chicken.
Ensure the chicken is evenly coated.
Cover the dish with aluminum foil.
Bake in the preheated oven for 20 minutes.
Remove the foil and bake for an additional 5 minutes to brown the top.
Garnish with fresh parsley before serving.