In large mixer bowl, combine yeast, 1 cup of the flour and the salt
Add warm water and oil; beat at low speed of electric mixer for ½ minute, scraping sides of bowl
Beat 3 minutes at high speed
By hand, stir in enough of the remaining flour to make a stiff dough
Knead till smooth, 8 to 10 minutes
Place in greased bowl, turning once to grease surface
Cover and let rise till more than double, about 1½ hours
Punch down; cover and chill till cold, about 2 hours
Cut dough in half
On floured surface, roll each half to 12-inch circle, about ¼ inch thick
Place in two greased 12-inch pizza pans; crimp edges
Brush each with an additional ½ teaspoon cooking oil
Bake at 425° oven for 23 to 25 minutes
