01 -
Grab a small bowl and combine olive oil, garlic, parsley, lemon juice, Dijon mustard, salt, and pepper. Stir or whisk everything until it’s totally smooth.
02 -
Put the chicken thighs into a big bowl or sealable plastic bag. Pour the marinade all over, making sure to coat it well. Keep in the fridge for at least 6 hours, or ideally let it sit overnight for the best flavor.
03 -
Cut the ends off the brussels sprouts and slice them in half. Toss them onto a baking tray covered with parchment paper or a silicone mat. Coat with olive oil, salt, and pepper, then mix so everything is covered. Spread them evenly around the edges of the tray.
04 -
Arrange the marinated chicken thighs skin-side facing upward in the center of the tray, leaving about 1.25 cm space between pieces. Slide the tray into a preheated 200°C oven and bake for 25 minutes. For bone-in chicken, let it cook for 30 minutes instead.
05 -
Turn on the broiler and let the chicken crisp up by broiling on high for 2 to 4 minutes. Watch carefully so it doesn’t burn. Take it out once the skin is browned, and the chicken is fully cooked.
06 -
Sprinkle the extra parsley over everything before plating. Serve each chicken thigh with some of the roasted brussels sprouts and a drizzle of the pan juices for extra flavor.