The Harvard Square Business Association welcomes everyone to the free Some Like it Hot Chili Cook-off. Snow, rain or shine, Harvard Square’s finest chefs are cooking a batch of their favorite chili for all to sample. The cook-off will take place on DeGuglielmo Plaza (in front of Crema Cafe at 27 Brattle St.) and is a fitting and spicy prelude to the Super Bowl. Vote for your favorite!