Preheat your oven to 425°F (220°C). This step is crucial as it helps achieve that perfect crispy crust.
Once the oven is heated, place your pizza stone or pan in the oven to preheat. This will ensure an evenly cooked base.
Prepare your pizza crust by placing it on a large piece of parchment paper. If you're using dough instead of a pre-made crust, roll it out into your desired shape.
In a medium bowl, combine the Buffalo hot sauce and shredded cooked chicken. Toss until the chicken is well coated with the sauce.
Spread the ranch dressing evenly over the pizza crust, creating a thin layer. This will merge flavors as the pizza cooks.
Next, top the pizza with your buffalo chicken mixture, spreading it evenly across the crust.
Add a generous layer of the chopped green onion, followed by the mozzarella cheese and crumbled blue cheese. The more cheese, the better!
Carefully remove the hot pizza stone or pan from the oven. Slide the pizza on parchment onto the hot surface.
Bake for 10 to 15 minutes, or until the cheese is melted and bubbly and the crust is golden brown.
Once out of the oven, finish with a sprinkle of chopped green onion and drizzle more ranch dressing and Buffalo sauce on top before serving.