Preheat the oven

• Place the baking tray or pizza stone in the oven and heat to the highest setting.

Stretch the dough

• Stretch the pizza dough into a round on a floured surface.
• Transfer it to the hot baking tray.

Add the ice

• Scatter the crushed ice over the raw dough.
• The ice melts in the oven and mixes with the starch from the dough, creating a thin layer of starchy water on top.

Bake the pizza

• Bake until the crust is puffed and golden and a starchy liquid has formed on top.

Make the cacio e pepe sauce

• Pull out the pizza and mix the grated pecorino by hand into the starchy water on top, the same way you would make a pasta sauce.
• Add the butter if using and stir until the sauce is creamy.

Finish and serve

• Grind black pepper generously over the top.
• Drizzle with olive oil and serve immediately.