A simple blend of spices combines to make a wonderful rub for steak. Can be used on any steak but it’s best on flat iron or flank steak. October 8, 2022October 8, 2022 Lucas DuncanFlat, Flat Iron Steak With Three Pepper Rub, Iron, Pepper, Rub, steak, Three, with A simple blend of spices combines to make a wonderful rub for steak. Can be used on any steak but it’s best on flat iron or flank steak. Advertisement