Whisk together the olive oil, lemon juice, lemon zest, Dijon mustard, honey, garlic, kosher salt, smoked paprika, oregano, garlic powder, and onion powder in a large bowl.
Add the chicken thighs and toss until evenly coated. Cover and refrigerate for at least 2 hours or up to 8 hours.
Preheat the grill to medium-high heat (400 to 425°F). Clean and lightly oil the grates. Remove the chicken from the marinade, letting the excess drip off, then discard the remaining marinade.
Grill the chicken for 5 to 6 minutes per side, or until it reaches an internal temperature of 170 to 175°F. If it begins browning too quickly, move it to indirect heat until fully cooked. Grill the lemon halves cut-side down for 2 to 3 minutes until lightly charred.
While the chicken rests for 5 to 10 minutes, stir together the parsley, basil, dill, lemon zest, lemon juice, garlic, olive oil, and kosher salt to make the gremolata.
Spoon it generously over the warm chicken, finish with a drizzle of olive oil, flaky sea salt, and the grilled lemons, then serve immediately.
Notes
Marinate for at least 2 hours. If you have extra time, let the chicken marinate overnight for even deeper flavor.
Pat the chicken dry before adding the marinade. This helps the marinade coat the meat more evenly.
Preheat and oil the grill grates. A hot, lightly oiled grill helps prevent sticking and creates better grill marks.
Don't flip the chicken too soon. Once a good sear forms, the chicken will release from the grill more easily.
Use an instant-read thermometer. Chicken thighs are at their best when cooked to an internal temperature of 170 to 175°F.
Let the chicken rest for 5 to 10 minutes before serving. This helps the juices redistribute so the meat stays tender.
Make the gremolata just before serving. Fresh herbs keep their bright color and flavor when prepared close to serving time.
Grill the lemon halves. The light char softens their acidity and adds a subtle sweetness when squeezed over the chicken.
Prep ahead for an easier dinner. The marinade can be made up to 5 days in advance, and the chicken can marinate the night before.
Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat gently in a 325°F oven or in a skillet with a splash of water or chicken broth to help keep the chicken moist.
If you enjoyed this recipe, please come back and give it a rating. I ❤️ hearing from you!