Pat the chicken thighs dry. If not already done, debone the thighs while keeping the skin intact. Season both sides with salt and black pepper.
Heat a skillet over medium heat and add 1 teaspoon olive oil. Add the chicken thighs skin-side down and pan-fry until the skin is crisp and the chicken is cooked through, flipping once (about 4–6 minutes per side depending on thickness). Transfer chicken to a plate and reserve pan juices.
Wipe the skillet if it has excessive burned bits, then heat a saucepan over medium and add the remaining 1 teaspoon olive oil. Add the minced garlic and sauté until lightly browned and fragrant, about 1 minute—do not burn.
Add the honey, Dijon mustard, water, and a pinch of salt to the saucepan. Stir and simmer briefly until combined and slightly thickened, scraping in the reserved chicken pan juices for extra flavor.
Return the cooked chicken to the skillet, pour the honey Dijon sauce over it, and heat briefly while turning the chicken to coat evenly. Remove from heat and serve immediately.