Easy Korean Steak Sandwich with bulgogi-marinated thinly sliced ribeye seared in cast iron until caramelized, served on a toasted brioche bun with gochujang aioli, quick pickled daikon, shredded romaine, sliced green onion, and toasted sesame seeds. Ready in 30 minutes.
Prep Time 15 minutes mins
Cook Time 10 minutes mins
Marinating Time 30 minutes mins
Total Time 55 minutes mins
Freeze the steak 20 to 30 minutes before slicing for cleaner, thinner slices. Slice ⅛-inch thin or thinner — this is the most important prep step. Marinate at least 30 minutes. Pat dry before cooking — this is essential for caramelization. Cook in small single-layer batches in a screaming hot pan. Do not overcrowd. Toast buns in the same pan to pick up caramelized bulgogi flavor. Rest steak 3 minutes before assembling. Assemble and serve immediately — assembled sandwiches do not hold.