Preheat the oven to 400°F (200°C).
Season the chicken thighs generously with salt and black pepper.
Heat a skillet over medium-high heat and add the olive oil. Sear the chicken thighs for 2-3 minutes per side until lightly browned.
Remove the chicken from the skillet and set aside. In the same skillet, add chopped red onion and minced garlic; sauté for 1-2 minutes until fragrant.
Add the light beer and fresh thyme to the skillet, scraping up any browned bits from the bottom.
Return the chicken to the skillet, reduce the heat to low and let it simmer for about 10 minutes to absorb the flavors.
Meanwhile, chop the carrot and parsnip into uniform pieces. Place them on a baking sheet and toss with a dash of olive oil, salt, and pepper.
Roast the vegetables in the preheated oven for about 20 minutes or until they are tender and slightly caramelized.
After simmering the chicken, transfer it along with the braising liquid into an oven-safe dish and place in the oven along with the vegetables if there’s enough space, or serve the braised chicken atop the roasted vegetables.
Finish by drizzling any extra pan sauce over the chicken and vegetables. Serve warm and enjoy your comforting, hearty meal.