St. Louis style

St. Louis-style pizza is a style of pizza found mostly as local variant pizza in Saint Louis that many times features a crispy crust, and Provel cheese.

Summary
St. Louis-style pizza is traditionally consists of a thin cracker like crust, covered with a tomato sauce with lots oregano seasoning (the sauce is often noted for being sweet), toppings are put on top of the sauce, and then the Provel cheese covers the top of the pizza. Usually the pizza is cut in a tile like shape fashion.

Provel cheese
Provel cheese is utilized in the making of most pizza of this style. The processed cheese consists of three cheeses fused in one. Those cheeses are: provolone, swiss, and white cheddar. The cheese is not common outside of St. Louis.