Pat chicken thighs dry and season both sides with salt and pepper, ensuring even coverage for crispy skin and enhanced flavor.

Warm 1 tbsp olive oil in a large nonstick skillet over medium-high heat until shimmering, about 2 minutes, to ensure perfect sear without sticking.

Place chicken skin-side down, pressing gently to ensure contact, and cook without moving for 5–7 minutes, until golden brown and crispy.

Turn chicken over carefully, reduce heat to medium, and cook for 3–4 more minutes until juices run clear and thigh registers 165°F.

In a small saucepan, whisk balsamic vinegar, brown sugar, minced garlic, a pinch of salt, and 1 tbsp olive oil until smooth and glossy.

Bring mixture to a gentle boil, then reduce heat and simmer for 3–5 minutes until thickened to coat a spoon.

Spoon the hot glaze evenly over each chicken thigh in the skillet, swirling pan, and cook 1–2 more minutes until sticky and caramelized.

Transfer thighs to a warm plate, let rest 5 minutes to lock in juices, then drizzle remaining glaze over top before garnish.