Season the chicken thighs generously with sea salt and black pepper on both sides.
In a large skillet, heat the olive oil over medium-high heat.
Add the seasoned chicken thighs and cook for approximately 5-7 minutes on each side until golden brown and fully cooked.
Transfer the chicken to a plate and keep warm.
Lower the heat to medium and add 2 tablespoons of butter to the skillet, allowing it to melt.
Add the chopped garlic and sauté for about a minute until fragrant.
Pour in the chicken broth and lemon juice, scraping up any bits stuck to the skillet.
Incorporate the lemon zest and dried thyme into the mixture.
Return the chicken to the skillet and let it simmer gently for around 5 minutes.
Mix in the remaining 2 tablespoons of butter, stirring until melted and the sauce is silky smooth.
Serve the chicken warm, drizzled with the lemon herb sauce and topped with fresh parsley.