01 -
Preheat grill to medium-high heat.
02 -
Season chicken breasts on both sides with salt, black pepper, garlic powder, onion powder, dried thyme, and dried basil; set aside.
03 -
In a mixing bowl, whisk together honey, melted butter, Dijon mustard, yellow mustard, wholegrain mustard, hot sauce (if using), white vinegar, and paprika until fully combined and smooth.
04 -
Remove 60 millilitres of the honey mustard sauce and place in a small bowl for basting; reserve remaining sauce for serving.
05 -
Brush grill grates with vegetable oil to prevent sticking.
06 -
Arrange chicken breasts on the grill and sear for 2 minutes per side until lightly browned.
07 -
Brush chicken breasts generously with half of the reserved basting sauce. Close grill lid and cook for 7 minutes.
08 -
Uncover grill, flip chicken, and brush with remaining basting sauce. Continue grilling for 5 to 6 minutes, or until chicken is cooked through and internal temperature reaches 74°C.
09 -
Transfer grilled chicken to a cutting board and allow to rest for 8 minutes.
10 -
Slice grilled chicken breasts and serve with the reserved honey mustard sauce.