Marinate the chicken thighs with lemon zest, olive oil, and salt for 10 minutes.
Dredge the marinated chicken in flour, shaking off the excess.
Heat olive oil in a skillet over medium-high heat and sear the chicken until golden brown on both sides, about 5 minutes per side. Remove and set aside.
In the same skillet, pour in the chicken broth and bring it to a simmer, scraping the bottom of the pan.
Add the Parmesan cheese and stir continuously until the sauce thickens.
Return the chicken to the skillet, spooning the sauce over the top. Simmer for 10 minutes, or until chicken is cooked through.
Notes
Serve with steamed vegetables or mashed potatoes for a complete meal. Ensure the internal temperature of the chicken reaches 165°F (74°C) before serving.