The 1921 slider is the best thing in beef to hit fast food since McD's steak egg and cheese bagel. It's a must try, and only 2 locations consistently get it right, Harrison at Boudinot, and Norwood. Every other location will try to use freeze dried onions instead of the caramelized, or cut some other corner on a sandwich which is an homage to a time when things were made with pride. Just remember, 1921 sliders with extra onions, only at Norwood or Harrison at Boudinot locations.