Core Points - Portillo's is celebrating National Hot Dog Day with a week-long event featuring $1 hot dogs and collaborations with local brands, including Lou Malnati's for a Chicago-style Hot Dog Deep Dish Pizza [1][2][7] - The event runs from July 14 to July 20, 2025, and includes special offers for Perks members, such as a $1 hot dog with a minimum purchase [3][11] - Portillo's has grown from a hot dog trailer to over 90 locations across 10 states, focusing on a unique dining experience that includes dine-in, drive-thru, takeout, and delivery [4] Promotions and Collaborations - Perks members can redeem a $1 hot dog or vegetarian Garden Dog during the promotional week [7][11] - A collaboration with Lou Malnati's will feature a limited-time Chicago Dog Deep Dish pizza available at 21 locations starting July 16 [6][7] - Portillo's has partnered with Local Style Chips to offer hot dog-flavored kettle chips in its restaurants [7] Marketing and Engagement - The company is engaging customers with interactive activations, including a giant inflatable hot dog in Dallas and a pop-up hot dog stand at Lou Malnati's [7] - Portillo's encourages fans to join its loyalty program, Perks, to access exclusive offers and rewards [5][11] - The brand emphasizes its Chicago roots and aims to celebrate its iconic hot dog as a key part of its identity [2][4]