1. Start by patting the chicken thighs dry with paper towels—this helps the glaze stick better and encourages browning.
2. In a small bowl, combine the brown sugar, minced garlic, soy sauce, olive oil, vinegar, black pepper, and red pepper flakes if using. Stir until the brown sugar begins to dissolve into the liquids.
3. Heat a large skillet over medium heat. When hot, add a small drizzle of oil to prevent sticking.
4. Place the chicken thighs skin-side down (or just the side that will face down) in the skillet. Let them cook undisturbed for about 5-6 minutes until the edges turn golden brown and crisp.
5. Flip the chicken and pour the sauce mixture over the thighs. Use a spoon to baste the chicken as it cooks on the other side for another 5-7 minutes, or until the internal temperature reaches 165°F. The sauce will thicken and coat the chicken beautifully.
6. Once cooked through, remove the chicken from the heat and let it rest for a few minutes. This keeps it juicy and allows the glaze to set slightly.
7. Garnish with chopped parsley or sliced green onions for a pop of color and freshness before serving.

A little tip from those early kitchen experiments of mine: don’t rush the searing step. That caramelized crust is where the flavor really builds, and it’s worth the few extra minutes. Also, if your sauce starts to get too thick or sticky, adding a splash of water can loosen it up without losing that sweet-savory vibe.