Combine the yeast with 2 cups of warm water. Let stand for 10 minutes to dissolve. Stir in the oil and sugar.

In a large mixing bowl, combine the flours and salt. Make a well in the center and stir in the yeast mixture. Work everything together. first with a wooden spoon and then your hands, to form a dough.

Turn it out onto a well-floured board and knead it for 8 minutes, adding flour until the dough loses stickiness. Place the dough in a floured bowl, cover it with a tea towel, and put it in a warm place. Let rise until doubled in bulk, 1 to 1 ½ hours.

Punch the dough down. divide it. and form into two rounds. Roll out each round on a well-floured board and stretch it to fit a 12- to 14-inch round pizza pan. Lightly oil the pans and sprinkle them with cornmeal.

Lay the rounds on the pans and make a lip of dough around the edge. Arrange topping of choice on the dough. Bake in a preheated 450°F oven for 15 minutes, until crust is golden.