All ingredients ready? Let's begin!
Preheat your oven to 400°F. You can lightly grease a 9x13-inch baking dish with olive or vegetable oil to ensure the chicken doesn’t stick to the dish.
In a medium mixing bowl, whisk together the preserves, soy sauce, vinegar, mustard, olive oil, ginger, garlic, pepper, and cayenne.
Pat the chicken thighs dry with paper towels and place them in the greased baking dish, skin side facing down.
Spoon 1/2 of the sauce evenly over the thighs. Bake for 15 minutes. Remove the dish from the oven. Turn the chicken thighs over and spoon the remaining sauce over the skin side of the thighs.
Return the dish to the oven and continue to bake until the internal temperature reaches 165°F when checked with an instant-read thermometer, approximately 20 minutes longer. Check the chicken starting at 25 minutes.
Once the chicken is cooked, transfer it to a serving platter and tent loosely with foil. Allow it to rest for 5 minutes.
Garnish the thighs with the scallion slices sprinkled over the top. Serve the sticky chicken with your favorite sides, such as rice pilaf and steamed broccoli.