Gourmet Prosciutto and Basil Pizza

Pour 1 1/2 cups warm water into a large bowl; sprinkle with yeast and let stand until foamy, about 5 minutes.

Whisk sugar, oil, and salt into yeast mixture. Add flour and stir until a sticky dough forms. Transfer dough to an oiled bowl and brush top with oil. Cover bowl with plastic wrap and set aside in a warm, draft-free place until dough has doubled in bulk, about 1 hour. Turn out onto a lightly floured work surface and gently knead 1 or 2 times before using.

Place a pizza stone under the broiler; heat for 30 minutes. Working in 4 batches, dust 1 ball dough with semolina. Using your fingertips, press dough into a 10" circle about ¼" thick, leaving a 1" crust around the edges. Hold dough straight up, and with fingertips circling crust, slide fingers around crust in a circular motion as you would turn a steering wheel until dough in the center is stretched to about ?" thick; transfer to a semolina-dusted pizza peel.