Put the flour in a bowl, make a well and add the yeast and sugar with a little lukewarm water. Cover and let rest for 1/2 hour.
Then add the salt, knead and gradually add lukewarm water until you have a smooth, firm dough. Now ( and really only now!) Knead in the olive oil.
Cover the bowl with cling film and let it rest in the refrigerator at 8 ° C for a day or two. Take the dough out of the refrigerator 2 hours before baking.
Shape small dough pieces (for a 28 mm round sheet approx. 220 - 250 grams, for a square baking sheet approx. 500 grams) and cover again for 2 hours at room temperature. Flour the dough before rolling it out.
Cover the dough as desired and bake the pizza as usual.