But we don't always have a steak sauce lurking in the pantry ... do just as well as substitutes: English mustard (if you like ...

Steak ingredients Four 8-ounce flank steaks 2 ounces soy sauce Mix together the soy sauce, brown sugar, mustard, salt and pepper. Coat the steak in the mixture and let it marinate in a non ...

Pan-fry on high heat until golden brown and a bit crispy around ... Spread with butter and loads of mustard. Pile on the onions and slice the steak before loading onto the sandwich.