Prepare the glaze: In a small saucepan, combine apple cider, honey, Dijon mustard, and minced garlic. Simmer over medium heat, stirring occasionally, until the mixture reduces and thickens into a sticky glaze that coats the back of a spoon.

Cook the chicken: Heat cooking oil in a skillet over medium-high heat. Season the chicken thighs generously with salt and pepper. Place them skin side down and sear until the skin is golden and crisp, about 5-7 minutes. Flip and continue cooking for another 5 minutes until chicken is almost cooked through.

Glaze the chicken: Pour the prepared apple cider glaze over the chicken in the skillet. Reduce the heat to medium-low and cook gently, spooning the glaze over the thighs frequently, until the glaze becomes sticky and caramelized, coating the chicken beautifully.

Make the crisp autumn slaw: While the chicken cooks, combine shredded green cabbage, shredded carrots, and thinly sliced apple in a large bowl. In a small bowl, whisk together apple cider vinegar, celery seeds, salt, and pepper. Drizzle this dressing over the slaw and toss gently to combine. Finish by stirring in chopped fresh parsley or chives.

Plate and serve: Arrange the sticky apple cider chicken thighs on plates alongside a generous portion of the crisp autumn slaw. Serve immediately.