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Killer Brownie's "Trick or Treat Yourself" Halloween Pop-Up

Saturday, October 31, 2026 · 11:00 AM – 7:00 PM

Killer Brownie's "Trick or Treat Yourself" Halloween Pop-Up

From October 28-31, Chicagoans can once again stop by Killer Brownie's signature Blue Brownie Door, knock and receive a FREE brownie, bringing a pretty sweet grown-up spin to the classic trick-or-treat tradition.

What's in store for 2026:

  • FREE Killer Brownies throughout the four-day activation, while supplies last

  • Limited-edition Killer Brownie merch for the first 50 guests each day

  • An exclusive Halloween treat: On Saturday, October 31, guests can sample Killer Brownie's brand-new Chocolate Peanut Butter Brookie, featuring a peanut butter cookie loaded with peanut butter chips, topped with a rich chocolate brownie packed with milk chocolate chips and finished with Mini REESE'S PIECES®

Event Details:

  • Where: Professor Pizza, 1374 W Grand Ave., Chicago (West Town)

  • When: Wednesday, October 28 – Saturday, October 31

  • Hours: Beginning at 11am daily, while supplies last

About Killer Brownie:

Born in the bakery of Dayton, Ohio's beloved Dorothy Lane Market in the early 1980s, Killer Brownie began with one seriously indulgent creation: a rich, fudgy, double-layered brownie with a thick ribbon of gooey caramel and pecans. What started as a local cult favorite has grown into a nationally loved dessert brand, known for its signature layers, decadent flavors and unapologetically over-the-top treats. Today, Killer Brownie is available at grocery retailers nationwide and at killerbrownie.com.


For information on more events like this, check out our roundup of Halloween Events.

Date & Time: Oct 31, 2026, 11:00 AM – 7:00 PM
Schedule: Daily, until Oct 31, 2026
Venue: Professor Pizza Slice & Pie - West Town
1374 W Grand Ave, Chicago, IL 60642
(312) 877-1907
Get Directions
Cost: Free
Registration: Drop-in (no registration needed)