For the pizza dough: Combine the all-purpose flour, baking powder and salt in a large bowl. Add the olive oil and water (little by little) and knead until a smooth dough forms. You might not need all the water or add a bit more. The dough should be non-sticky. If it get's too sticky, add a bit more flour. You can either knead it by hand or let it knead in a
kitchen machine.