If you are making the pizza bases in advance, once the dough has been divided and rolled, cover and place into the fridge. Remove one hour before needed to allow the dough to come up to temperature.
Divide the dough into six balls and roll each out on a lightly floured work surface until 20cm/8in in diameter. (You can also make one big pizza.) Spread a little passata (or homemade tomato sauce ...