These sheet pan honey mustard chicken thighs roast until juicy, then get brushed with a tangy-sweet glaze and broiled until glossy, golden, and deeply caramelized. Ready in about 30 minutes, they make an easy weeknight dinner with minimal cleanup.
Preheat the oven to 400°F. Arrange one rack in the center of the oven and another at the top, directly beneath the broiler. Line a rimmed baking sheet with foil, coat it with nonstick cooking spray, and set it aside.
In a small bowl, whisk together the apple cider vinegar, Dijon mustard, honey, brown sugar, garlic powder, mustard powder, onion powder, and chopped garlic. Season with the kosher salt and a few twists of black pepper. Taste and adjust the seasoning if desired.
Place the chicken thighs in a large bowl and toss with about one-third of the glaze. Reserve the remaining glaze for basting. Let the chicken sit while the oven finishes preheating.
Arrange the thighs in a single layer on the prepared baking sheet. For the best presentation, place the deboned sides facing up. Roast on the center rack for 10 minutes.
Remove the pan from the oven and set the broiler to its highest setting. If the chicken has released a lot of liquid, carefully drain it from the pan. Brush half of the remaining glaze over the thighs, then broil on the top rack for 4–5 minutes, until golden and caramelized. Flip the thighs, brush with the rest of the glaze, and broil for another 4–5 minutes, until deeply caramelized and cooked through. The thickest part of each thigh should reach 165°F.
Let the chicken rest for a few minutes before slicing and serving. It pairs well with roasted potatoes and broccoli.