Pat thighs dry, season with salt and pepper. Heat oil in a large skillet over medium-high heat.
Sear thighs skin-side down 6–8 minutes until golden; flip and cook 4 minutes more. Remove and drain excess fat, leaving about 1 tbsp.
Lower heat to medium; add garlic and cook 30 seconds. Stir in honey, soy, sriracha, and vinegar.
Return thighs to pan skin-side up. Spoon sauce over thighs and simmer 8–12 minutes until internal temp hits 165°F and sauce is sticky.
If sauce needs thickening, remove thighs, stir in cornstarch slurry, simmer until glossy, then return thighs to coat. Garnish and serve.