Preheat your oven to 400 degrees F. Line a rimmed baking sheet with parchment paper, Silpat liner, or foil. This will catch any drippings and make cleanup a breeze.
In a small bowl, whisk together the butter, honey, harissa, and lemon juice until well combined. The mixture should be smooth and slightly glossy.
Take the chicken thighs and lay them onto your prepared baking dish. Using a brush or spoon, baste each thigh generously with the harissa mixture on both sides.
Arrange the chicken skin side up on the baking sheet, ensuring they have space between them for even cooking.
Place the baking sheet in the preheated oven and cook for about 30 minutes. Halfway through, take the remaining harissa mixture and baste the chicken again, 1 to 2 times to keep it moist and flavorful.
As the cooking time nears its end, watch the chicken closely to ensure the skin doesn’t burn. If it starts to brown too quickly, tent it with foil to protect it.
Once the cooking time is over, remove the baking sheet from the oven and let the chicken rest for about 5 minutes. This helps the juices redistribute for maximum tenderness.
Serve your beautifully roasted Harissa Chicken Thighs with sides of your choice, and garnish with fresh herbs if desired.
Enjoy the explosion of flavors as you take your first bite of this delightful dish!