Preheat oven to 400°F.
Place an oven safe skillet on the stovetop and set heat to medium. Add olive oil to your pan.
1 tablespoon extra virgin olive oil
Sprinkle chicken thighs with salt and pepper. Sear meat in olive oil for 2 minutes on each side, until browned. Reduce stovetop heat to low, transfer chicken to a plate and set aside.
5 boneless, skinless chicken thighs
Mix up your sauce: measure heavy cream, flour, salt, pepper and Italian seasonings into a small bowl and whisk ingredients together. Set aside.
1 cup heavy cream, 2 teaspoons flour, 1 teaspoon salt, 1 teaspoon pepper, 2 teaspoons Italian seasonings
Place unsalted butter in skillet, add garlic and sauté for 30 seconds, until aromatic.
2 tablespoons unsalted butter, 2 teaspoons minced garlic
Add sauce mixture to the skillet and stir until it begins to thicken. Whisk in your white wine vinegar, broth and bay leaf.
½ cup chicken broth, 1 tablespoon white wine vinegar, 1 bay leaf
Add spinach to sauce and stir until it cooks down a bit.
2 cups spinach
Nestle chicken thighs back into skillet and baste with sauce.
Transfer skillet to the oven and bake for about 20 minutes and then broil on high for 2-3 minutes to get some nice brown color on top.
Use a food thermometer to check that chicken is fully cooked through. Once the internal temperature reaches 165°F, it is done. Take your skillet out of the oven and remove bay leaf. Allow to cool and enjoy!