Dissolve yeast, sugar and salt in warm water for 5 minutes.. it should get bubbly and foamy. (I take a cup of regular temp tap water and microwave it for about 50 seconds

Add flour and mix until well blended.

Pour oil over dough, cover bowl and let set in a warm draft free spot for 20 minutes.

After 20 minutes stir down the dough, incorporating the oil. Divide between 2 pans for a thin crust or 1 pan for a thicker crust.

Bake for 5 minutes at 350 (this is done before toppings are added). Top your crust as you like and continue baking at 425 for 12-15 minutes.