Above all, Home Run Inn is a proud, family-owned business—one with deep roots in the city of Chicago. In 1923, the original Home Run Inn location opened as a small tavern on Chicago’s South Side. Founded by Mary and Vincent Grittani, the tavern received its name one fateful day when a baseball from the neighborhood park smashed through one of the tavern’s windows, a home run for some young slugger on the sandlot. In 1947, after that baseball made history, Mary and her son-in-law, Nick Perrino, crafted the iconic Chicago pizza recipe known today.