Prepare the Sauce:
In a mixing bowl, whisk together Dijon mustard, honey, olive oil, apple cider vinegar, minced garlic, paprika, salt, and pepper until well combined.
Marinate the Chicken:
Place the chicken breasts in a baking dish or resealable bag. Pour half of the honey mustard sauce over the chicken, ensuring each piece is coated. Cover and refrigerate for 30 minutes to an hour.
Cook the Chicken:
Baking Method: Preheat your oven to 375°F (190°C). Transfer the marinated chicken to a baking dish and bake for 25–30 minutes or until the internal temperature reaches 165°F (74°C).
Grilling Method: Preheat the grill to medium heat. Grill the chicken for 6–8 minutes per side, basting with reserved sauce occasionally.
Pan-Seared Method: Heat a skillet over medium heat with a drizzle of olive oil. Sear the chicken for 5–7 minutes on each side, then add reserved sauce and cook for an additional 5 minutes until fully cooked.
Glaze and Serve:
Once cooked, brush the chicken with the remaining honey mustard sauce. Garnish with chopped parsley and serve immediately.