You might know Chicago for its pepper-topped hot dogs, that famous deep-dish pizza, or those jus-drizzled Italian beef sandwiches. But there's another food in the city's glitzy spotlight: popcorn.

CHICAGO — Following a flurry of Chicago-flavored collaborations, a new twist on Garrett Popcorn combines the crunchy kernels with pizza in a partnership with Home Run Inn Pizza. Garrett’s “Chicago ...