Leave the batter to reach room temperature and then to stand still half an hour to rise. And it roll out well, sprinkle with cornmeal. You and wheat, but corn does a better crust. Roll round base, quite thin, because as you put it on the BBQ it again the initial rising. Before you put on the BBQ, brush both sides with olive oil, it will prevent the pizza from sticking. Distribute products on the pizza and finish cooking.