Making Classic Hungarian Chicken Paprikash with Creamy Sauce is straightforward. Follow these steps for a delicious result:

1. Sauté the Onions: In a large skillet, heat the vegetable oil over medium heat. Add the chopped onions and sauté until they are translucent, about 5 minutes.

2. Add Chicken: Season the chicken thighs with salt and pepper. Add them to the skillet, browning them on all sides. This should take about 8-10 minutes.

3. Incorporate Paprika and Garlic: Once the chicken is browned, sprinkle in the sweet paprika and minced garlic. Stir to coat the chicken and allow the spices to become fragrant, about 1-2 minutes.

4. Simmer: Pour in the chicken broth, ensuring the chicken is mostly submerged. Cover the skillet and let it simmer for about 30 minutes, or until the chicken is cooked through and tender.

5. Create the Creamy Sauce: In a separate bowl, mix the sour cream with flour (if using) until smooth. Once the chicken is cooked, reduce the heat and stir in the sour cream mixture. Cook for an additional 5 minutes, making sure not to boil the sauce.