4 Levels of Tostadas: Amateur to Food Scientist

We challenged chefs of three different skill levels - amateur Emily, home cook Daniel, and professional chef Saul Montiel from Cantina Rooftop - to prepare us their take on tostadas. Once each level of chef had presented their creation, we asked expert food scientist Rose to explain the choices they made along the way - both good and bad. Which of their crunchy creations looks most mouthwatering to you?