Pat chicken thighs dry with paper towels and season generously on both sides with salt, black pepper, paprika, and onion powder.
In a small bowl, whisk together honey, soy sauce, minced garlic, apple cider vinegar, and red pepper flakes until smooth.
Heat olive oil in a large cast-iron skillet over medium-high heat.
Add seasoned chicken thighs in a single layer and sear for 4 to 5 minutes per side until golden brown and crispy.
Reduce heat to medium, add butter to skillet, and pour in prepared honey garlic glaze over chicken.
Simmer for 3 to 4 minutes, spooning pan sauce continuously over chicken thighs as glaze thickens and caramelizes.
Ensure internal temperature reaches 165°F (74°C).
Remove from heat, garnish with freshly chopped parsley, and serve hot with extra glaze drizzled over top!
