Rick Martinez demonstrates how to make hearty and delicious corn tortillas using three type of presses. Then, he gives tips on turning store-bought tortillas into tostadas! Get the dish ▶ Sign Up For Food Network ▶ Follow Rick Martínez ▶ Invite to Food Network, where learning to prepare is as simple as clicking play! Grab your apron and get ready to get cookin' with a few of the very best chefs around the world. We'll offer you…