Follow these steps for making your Nashville Hot Chicken Pizza:

1. Marinate Chicken: In a bowl, combine the buttermilk and hot sauce. Add the chicken thighs, ensuring they are fully submerged. Cover and refrigerate for at least 30 minutes (or up to overnight for more flavor).

2. Prepare Coating: In a separate bowl, mix together the flour, cayenne pepper, paprika, garlic powder, onion powder, salt, and black pepper.

3. Preheat Oven: While the chicken is marinating, preheat your oven according to the pizza crust instructions (usually around 425°F or 220°C).

4. Coat Chicken: Remove the chicken from the buttermilk mixture. Dredge each piece in the flour mixture, ensuring they are well-coated. Shake off any excess flour.

5. Fry Chicken: In a large skillet, heat oil over medium-high heat. Once hot, add the coated chicken thighs and fry until golden brown and cooked through, about 5-7 minutes per side. Remove from the skillet and place on a paper towel-lined plate to drain excess oil.

6. Prepare Pizza Crust: Roll out your pizza dough to your desired thickness and place it on a pizza stone or baking sheet.

7. Add Cheese: Sprinkle a layer of shredded mozzarella and cheddar cheese evenly over the crust.

8. Add Chicken: Cut the fried chicken into strips and distribute them evenly over the cheese.

9. Bake Pizza: Place the pizza in the preheated oven and bake according to the crust instructions, typically around 12-15 minutes, or until the cheese is bubbly and golden.

10. Drizzle Ranch: After removing the pizza from the oven, drizzle ranch dressing over the top and sprinkle with fresh parsley, if desired.

11. Slice and Serve: Allow the pizza to cool for a few minutes before slicing it into wedges.