01 -
In a large bowl, whisk together the olive oil, balsamic vinegar, lemon juice, Dijon mustard, honey, garlic, Italian seasoning, salt, pepper, and red pepper flakes until smooth and emulsified.
02 -
Pat the chicken dry with paper towels. Place it in a gallon zip-top bag or shallow dish and pour the marinade over it. Turn to coat evenly, press out excess air, seal, and refrigerate for at least 30 minutes or up to 12 hours.
03 -
To grill: preheat to medium-high heat and cook for 5 to 6 minutes per side until the internal temperature reaches 165°F. To bake: preheat the oven to 425°F, place the chicken on a foil-lined baking sheet, and bake for 20 to 25 minutes until the internal temperature reaches 165°F.
04 -
Transfer the cooked chicken to a cutting board and let it rest for 5 minutes. Slice against the grain into half-inch pieces and serve.