Put the flour, fine salt, sugar, yeast, water and oil in a bowl for a stand or handheld mixer. If you don't have one, a large bowl will do.
Mix everything roughly using the hook attachment and then knead on medium speed for 7min. If you don't have a mixer, mix with a spatula until it doesn't help anymore, finish mixing with your hands and kneading for 15min.
Put a bit of olive oil on a clean bowl and let the dough rest inside covered with a kitchen cloth for an hour or until it doubles in size.
Drizzle olive oil on the base of the baking sheet and spread the dough on top. Cover again and let it rest for 1 hour again or until it doubles in size.
Make dimples on the dough by gently pressing with your fingers.
Drizzle olive oil on top (on the video you'll see I did it after adding the rosemary but it's best if you do it before).