I find it much easier to press a pizza crust into a baking sheet rather than trying to shape a circle. It also gives me a great texture with every piece having an "end."
Mix all of the ingredients together in a large bowl. Cover with plastic wrap and let set at room temperature overnight or at least 8-10 hours.
First, spread mozzarella cheese on the dough. Second, carefully spoon sauce over top of the cheese. Third, add onions, olives and prosciutto. Place in preheated oven on the lowest rack and bake for 15-20 minutes or until golden brown.
Inspiration: Mom and Bon Appetite Magazine