Preheat the oven to 400°F (200°C).
In a shallow dish, mix together the flour, Parmesan cheese, garlic powder, onion powder, salt, and black pepper.
Dredge each chicken breast in the flour mixture, ensuring they are evenly coated.
In a skillet, melt butter over medium heat.
Add the coated chicken breasts to the skillet and cook until golden brown on both sides, about 3-4 minutes per side.
Transfer the chicken to a baking dish and bake in the preheated oven for 20-25 minutes, until cooked through.
For the creamy garlic sauce, add heavy cream to the remaining butter in the skillet and stir until combined and heated through.