A properly built steak sandwich horseradish sauce combination changes the way you look at leftover steak. Growing up, weekend steaks meant Monday sandwiches, but the bread always went soggy. Nobody in my house had a fix for it. We just accepted it.
Most recipes fail because they pile wet ingredients onto dry meat, and the sandwich falls apart before you’re halfway through. We fix this by searing a specific cut and building a sauce barrier to protect your bread.