Prepare the Chicken: Halve the chicken breasts to create thinner cutlets, then season both sides with salt and black pepper to taste.
Set Up Flour Dredge: In a shallow bowl, combine ½ cup of flour with 1 tablespoon of garlic powder, 1 tablespoon of onion powder, 1 teaspoon of paprika, and ½ teaspoon of thyme. Stir until well mixed. Dredge each chicken cutlet in the seasoned flour, ensuring it’s fully coated, and save 2 tablespoons of this mixture for the sauce.
Cook the Chicken: In a large skillet, heat 3 tablespoons of butter (or bacon grease/avocado oil) over medium heat until melted and hot. Add the chicken cutlets and cook for about 4-5 minutes per side, or until they are golden brown and cooked through. Once done, transfer the chicken to a plate and set aside.
Caramelize the Onions: Using the same skillet, add the sliced onions. Cook over medium heat, stirring occasionally, until the onions are golden brown and caramelized, which should take about 20-25 minutes.
Make the Creamy Smothered Sauce: Sprinkle the 2 tablespoons of saved flour dredge over the caramelized onions. Stir to combine, allowing the flour to absorb any remaining fat in the pan. Slowly pour in 2 cups of chicken stock while stirring, ensuring there are no lumps. Add 2 teaspoons of Worcestershire sauce and stir until the sauce starts to thicken. Stir in ½ cup of heavy cream, combining until smooth. Let the sauce simmer for another 2-3 minutes, until it’s thick and creamy.
Add Chicken to Sauce: Return the cooked chicken cutlets to the skillet, spooning the creamy onion sauce over each piece. Allow the chicken to simmer in the sauce for a few minutes until everything is heated through.
Serve: Garnish with fresh herbs if desired and serve hot. Enjoy your savory, creamy caramelized onion smothered chicken!