Dry the chicken: Pat chicken thighs very dry with paper towels. The drier the skin, the crisper it gets.
Season and dry brine: Mix salt and pepper, then sprinkle over both sides of the thighs, focusing on the skin.
Place uncovered in the fridge for 30 minutes (or up to overnight for deeper flavor).
Prep the spice mix: In a small bowl, combine smoked paprika, dried thyme, rosemary, sage, minced garlic, orange zest, and olive oil. Stir in the maple syrup to balance the savory notes.
Heat the oven: Preheat to 425°F (220°C). Set a large rimmed baking sheet or roasting pan in the oven to heat up while you prep the vegetables.
Season the veg: In a bowl, toss potatoes, carrots, and shallots with a drizzle of olive oil, a pinch of salt, pepper, and the balsamic vinegar.
Coat the chicken: Remove the hot pan from the oven.
Toss the vegetables onto the pan. Rub the spice mixture all over the chicken thighs, gently lifting the skin to get some underneath, then lay the thighs on top of the vegetables, skin-side up.
Roast: Roast for 35–45 minutes, until the skin is deep golden and crisp and the internal temperature reaches 175°F (80°C) at the thickest part. Rotate the pan halfway for even browning.
Make a quick pan sauce: Transfer chicken and vegetables to a platter, keeping the pan on the stove over medium heat.
Add white wine or chicken stock to the pan drippings, scraping up brown bits. Simmer 2–3 minutes to reduce slightly, then whisk in butter. Taste and adjust salt and pepper.
Serve: Spoon the sauce over the chicken and vegetables.
Garnish with chopped parsley and a squeeze of fresh orange if you like.