01 -
In a bowl, thoroughly whisk together Dijon mustard, honey, whole-grain mustard, olive oil, minced garlic, and apple cider vinegar or lemon juice. Season with salt and freshly ground black pepper.
02 -
Arrange the chicken breasts in a resealable bag or shallow dish. Pour the honey mustard mixture over the chicken, ensuring even coating. Seal and marinate in the refrigerator for at least 30 minutes and up to 4 hours for enhanced flavor.
03 -
Preheat oven to 375°F. Transfer marinated chicken and excess marinade to a baking dish in a single layer. Bake for 25 to 30 minutes, basting with pan juices halfway through, until the internal temperature reaches 165°F.
04 -
Remove dish from oven and allow chicken to rest for 5 minutes. Spoon over the pan sauce and garnish with freshly chopped parsley before serving.