Even the most affordable cut of steak makes a memorable sandwich once transformed from a raw slab to a succulent filet. But ...

Read more: 26 Best Toppings To Add To Your Chicken Sandwich While there are many ... The first is a simple salt brine, which involves coating raw steak in sea salt and letting it sit overnight.

Spread with butter and loads of mustard. Pile on the onions and slice the steak before loading onto the sandwich. Put on the top half of toasted bread and dunk into more mustard while you eat.