For best results, have all ingredients and utensils at room temperature.
Dissolve dry yeast in warm water. Let stand 4-5 minutes.
Place flour, milk, sugar, and salt in mixer bowl. Using a whip, blend on low speed for 4 minutes.
Add dissolved yeast and oil. Blend on medium speed for 10 minutes. Batter will be lumpy.
Oil five sheet pans (18”x26”x1”). Sprinkle each pan with 1 oz (approximately 3 Tbsp) cornmeal.
Pour or spread 3 lb 6 oz (1 ½ qt) batter into each pan. Let stand for 20 minutes.
Prebake until crust is set: Conventional oven: 475 °F for 10 minutes. Convection oven: 425 °F for 7 minutes.
Top each prebaked crust with desired topping or use Pizza With Ground Beef Topping recipe (see D-31).