Line a baking tray with greaseproof paper and evenly place the frozen sourdough balls. Cover in a loose covering such as a teatowel or a bag and leave to prove in the fridge for around 10 hours.
Remove from the fridge and then allow them to come up to room temperature for around 2 hours.
Leave the dough covered until you are ready to shape.
To shape, dust with a little flour and rest for a couple of minutes before one at a time rolling them - or if you're confident, throwing them - to make a delicious thin pizza base.
Turn the oven to as high as it will go and leave to heat up whilst you top your pizza with your choice of toppings.
Once the oven has heated, place your baking stone or tray in the oven until piping hot.
Once hot, remove the tray from the oven and carefully place your pizza on the hot stone/tray and pop it back in the hot oven until golden and crisp.
Enjoy hot and fresh out the oven!