Deep dish pizza started as a snack for customers drinking alcohol inside a bar owned by Chicago businessman Ike Sewell.

Following is a transcript of the video. Narrator: No trip to Chicago is complete without a slice of cheesy, saucy, deep dish pizza. Alana Yzola: Hey guys, I'm Alana. Herrine Ro: Hi, I'm Herrine.

Chicago is famous for its deep dish pizza, and there’s no better day to grab a slice than Saturday. That’s because Saturday, April 5, is National Deep Dish Pizza Day.